Home / 5,168.16-7,132.32-2,929.68

Finding the Fourth Proportional to 5,168.16, 7,132.32 and 2,929.68

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Solution

The fourth proportional to 5,168.16, 7,132.32 and 2,929.68 is: 4,043.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,168.16 : 7,132.32 = 2,929.68 : x
  2. Step 2: Convert to fraction form
    5,168.16/7,132.32 = 2,929.68/x
  3. Step 3: Cross multiply
    5,168.16x = 7,132.32 × 2,929.68
  4. Step 4: Simplify right side
    5,168.16x = 20,895,415.26
  5. Step 5: Solve for x
    x = 20,895,415.26/5,168.16
  6. Step 6: Final answer
    x = 4,043.11

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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.