Home / 5,280.12-7,285.08-3,685.08

Finding the Fourth Proportional to 5,280.12, 7,285.08 and 3,685.08

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Solution

The fourth proportional to 5,280.12, 7,285.08 and 3,685.08 is: 5,084.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.12 : 7,285.08 = 3,685.08 : x
  2. Step 2: Convert to fraction form
    5,280.12/7,285.08 = 3,685.08/x
  3. Step 3: Cross multiply
    5,280.12x = 7,285.08 × 3,685.08
  4. Step 4: Simplify right side
    5,280.12x = 26,846,102.61
  5. Step 5: Solve for x
    x = 26,846,102.61/5,280.12
  6. Step 6: Final answer
    x = 5,084.37

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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.