Home / 5,280.20-7,285.68-3,042.08

Finding the Fourth Proportional to 5,280.20, 7,285.68 and 3,042.08

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Solution

The fourth proportional to 5,280.20, 7,285.68 and 3,042.08 is: 4,197.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.20 : 7,285.68 = 3,042.08 : x
  2. Step 2: Convert to fraction form
    5,280.20/7,285.68 = 3,042.08/x
  3. Step 3: Cross multiply
    5,280.20x = 7,285.68 × 3,042.08
  4. Step 4: Simplify right side
    5,280.20x = 22,163,621.41
  5. Step 5: Solve for x
    x = 22,163,621.41/5,280.20
  6. Step 6: Final answer
    x = 4,197.50

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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.