Home / 1,615.90-2,423.85-1,146.10

Finding the Fourth Proportional to 1,615.90, 2,423.85 and 1,146.10

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Solution

The fourth proportional to 1,615.90, 2,423.85 and 1,146.10 is: 1,719.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.90 : 2,423.85 = 1,146.10 : x
  2. Step 2: Convert to fraction form
    1,615.90/2,423.85 = 1,146.10/x
  3. Step 3: Cross multiply
    1,615.90x = 2,423.85 × 1,146.10
  4. Step 4: Simplify right side
    1,615.90x = 2,777,974.49
  5. Step 5: Solve for x
    x = 2,777,974.49/1,615.90
  6. Step 6: Final answer
    x = 1,719.15

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.