Home / 1,615.28-2,230.24-1,241.67

Finding the Fourth Proportional to 1,615.28, 2,230.24 and 1,241.67

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Solution

The fourth proportional to 1,615.28, 2,230.24 and 1,241.67 is: 1,714.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.28 : 2,230.24 = 1,241.67 : x
  2. Step 2: Convert to fraction form
    1,615.28/2,230.24 = 1,241.67/x
  3. Step 3: Cross multiply
    1,615.28x = 2,230.24 × 1,241.67
  4. Step 4: Simplify right side
    1,615.28x = 2,769,222.10
  5. Step 5: Solve for x
    x = 2,769,222.10/1,615.28
  6. Step 6: Final answer
    x = 1,714.39

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Half 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.