Home / 5,146.12-7,712.40-2,807.16

Finding the Fourth Proportional to 5,146.12, 7,712.40 and 2,807.16

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Solution

The fourth proportional to 5,146.12, 7,712.40 and 2,807.16 is: 4,207.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,146.12 : 7,712.40 = 2,807.16 : x
  2. Step 2: Convert to fraction form
    5,146.12/7,712.40 = 2,807.16/x
  3. Step 3: Cross multiply
    5,146.12x = 7,712.40 × 2,807.16
  4. Step 4: Simplify right side
    5,146.12x = 21,649,940.78
  5. Step 5: Solve for x
    x = 21,649,940.78/5,146.12
  6. Step 6: Final answer
    x = 4,207.04

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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.