Home / 7,104.12-10,656.18-1,910.13

Finding the Fourth Proportional to 7,104.12, 10,656.18 and 1,910.13

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Solution

The fourth proportional to 7,104.12, 10,656.18 and 1,910.13 is: 2,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,104.12 : 10,656.18 = 1,910.13 : x
  2. Step 2: Convert to fraction form
    7,104.12/10,656.18 = 1,910.13/x
  3. Step 3: Cross multiply
    7,104.12x = 10,656.18 × 1,910.13
  4. Step 4: Simplify right side
    7,104.12x = 20,354,689.10
  5. Step 5: Solve for x
    x = 20,354,689.10/7,104.12
  6. Step 6: Final answer
    x = 2,865.20

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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.