Home / 5,127.09-7,691.10-1,840.20

Finding the Fourth Proportional to 5,127.09, 7,691.10 and 1,840.20

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Solution

The fourth proportional to 5,127.09, 7,691.10 and 1,840.20 is: 2,760.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,127.09 : 7,691.10 = 1,840.20 : x
  2. Step 2: Convert to fraction form
    5,127.09/7,691.10 = 1,840.20/x
  3. Step 3: Cross multiply
    5,127.09x = 7,691.10 × 1,840.20
  4. Step 4: Simplify right side
    5,127.09x = 14,153,162.22
  5. Step 5: Solve for x
    x = 14,153,162.22/5,127.09
  6. Step 6: Final answer
    x = 2,760.47

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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.