Home / 5,237.91-7,857.35-1,540.13

Finding the Fourth Proportional to 5,237.91, 7,857.35 and 1,540.13

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Solution

The fourth proportional to 5,237.91, 7,857.35 and 1,540.13 is: 2,310.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,237.91 : 7,857.35 = 1,540.13 : x
  2. Step 2: Convert to fraction form
    5,237.91/7,857.35 = 1,540.13/x
  3. Step 3: Cross multiply
    5,237.91x = 7,857.35 × 1,540.13
  4. Step 4: Simplify right side
    5,237.91x = 12,101,293.47
  5. Step 5: Solve for x
    x = 12,101,293.47/5,237.91
  6. Step 6: Final answer
    x = 2,310.33

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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.