Home / 5,280.87-7,287.80-3,184.59

Finding the Fourth Proportional to 5,280.87, 7,287.80 and 3,184.59

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Solution

The fourth proportional to 5,280.87, 7,287.80 and 3,184.59 is: 4,394.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.87 : 7,287.80 = 3,184.59 : x
  2. Step 2: Convert to fraction form
    5,280.87/7,287.80 = 3,184.59/x
  3. Step 3: Cross multiply
    5,280.87x = 7,287.80 × 3,184.59
  4. Step 4: Simplify right side
    5,280.87x = 23,208,639.08
  5. Step 5: Solve for x
    x = 23,208,639.08/5,280.87
  6. Step 6: Final answer
    x = 4,394.85

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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.