Home / 1,615.38-2,229.27-1,056.21

Finding the Fourth Proportional to 1,615.38, 2,229.27 and 1,056.21

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Solution

The fourth proportional to 1,615.38, 2,229.27 and 1,056.21 is: 1,457.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.38 : 2,229.27 = 1,056.21 : x
  2. Step 2: Convert to fraction form
    1,615.38/2,229.27 = 1,056.21/x
  3. Step 3: Cross multiply
    1,615.38x = 2,229.27 × 1,056.21
  4. Step 4: Simplify right side
    1,615.38x = 2,354,577.27
  5. Step 5: Solve for x
    x = 2,354,577.27/1,615.38
  6. Step 6: Final answer
    x = 1,457.60

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,616.38, 2,230.65 and 1,057.21
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.