Home / 5,256.32-7,252.92-3,131.20

Finding the Fourth Proportional to 5,256.32, 7,252.92 and 3,131.20

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Solution

The fourth proportional to 5,256.32, 7,252.92 and 3,131.20 is: 4,320.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,256.32 : 7,252.92 = 3,131.20 : x
  2. Step 2: Convert to fraction form
    5,256.32/7,252.92 = 3,131.20/x
  3. Step 3: Cross multiply
    5,256.32x = 7,252.92 × 3,131.20
  4. Step 4: Simplify right side
    5,256.32x = 22,710,343.10
  5. Step 5: Solve for x
    x = 22,710,343.10/5,256.32
  6. Step 6: Final answer
    x = 4,320.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.