Home / 5,410.10-8,115.14-1,306.10

Finding the Fourth Proportional to 5,410.10, 8,115.14 and 1,306.10

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Solution

The fourth proportional to 5,410.10, 8,115.14 and 1,306.10 is: 1,959.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,410.10 : 8,115.14 = 1,306.10 : x
  2. Step 2: Convert to fraction form
    5,410.10/8,115.14 = 1,306.10/x
  3. Step 3: Cross multiply
    5,410.10x = 8,115.14 × 1,306.10
  4. Step 4: Simplify right side
    5,410.10x = 10,599,184.35
  5. Step 5: Solve for x
    x = 10,599,184.35/5,410.10
  6. Step 6: Final answer
    x = 1,959.15

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Half scale
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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.