Home / 1,615.96-2,230.77-1,056.45

Finding the Fourth Proportional to 1,615.96, 2,230.77 and 1,056.45

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Solution

The fourth proportional to 1,615.96, 2,230.77 and 1,056.45 is: 1,458.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.96 : 2,230.77 = 1,056.45 : x
  2. Step 2: Convert to fraction form
    1,615.96/2,230.77 = 1,056.45/x
  3. Step 3: Cross multiply
    1,615.96x = 2,230.77 × 1,056.45
  4. Step 4: Simplify right side
    1,615.96x = 2,356,696.97
  5. Step 5: Solve for x
    x = 2,356,696.97/1,615.96
  6. Step 6: Final answer
    x = 1,458.39

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Double scale
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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.