Home / 5,280.90-7,290.20-3,395.32

Finding the Fourth Proportional to 5,280.90, 7,290.20 and 3,395.32

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Solution

The fourth proportional to 5,280.90, 7,290.20 and 3,395.32 is: 4,687.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.90 : 7,290.20 = 3,395.32 : x
  2. Step 2: Convert to fraction form
    5,280.90/7,290.20 = 3,395.32/x
  3. Step 3: Cross multiply
    5,280.90x = 7,290.20 × 3,395.32
  4. Step 4: Simplify right side
    5,280.90x = 24,752,561.86
  5. Step 5: Solve for x
    x = 24,752,561.86/5,280.90
  6. Step 6: Final answer
    x = 4,687.19

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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.