Home / 5,275.11-7,280.66-3,285.28

Finding the Fourth Proportional to 5,275.11, 7,280.66 and 3,285.28

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Solution

The fourth proportional to 5,275.11, 7,280.66 and 3,285.28 is: 4,534.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,275.11 : 7,280.66 = 3,285.28 : x
  2. Step 2: Convert to fraction form
    5,275.11/7,280.66 = 3,285.28/x
  3. Step 3: Cross multiply
    5,275.11x = 7,280.66 × 3,285.28
  4. Step 4: Simplify right side
    5,275.11x = 23,919,035.24
  5. Step 5: Solve for x
    x = 23,919,035.24/5,275.11
  6. Step 6: Final answer
    x = 4,534.32

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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.