Home / 5,280.54-7,286.65-3,155.65

Finding the Fourth Proportional to 5,280.54, 7,286.65 and 3,155.65

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Solution

The fourth proportional to 5,280.54, 7,286.65 and 3,155.65 is: 4,354.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.54 : 7,286.65 = 3,155.65 : x
  2. Step 2: Convert to fraction form
    5,280.54/7,286.65 = 3,155.65/x
  3. Step 3: Cross multiply
    5,280.54x = 7,286.65 × 3,155.65
  4. Step 4: Simplify right side
    5,280.54x = 22,994,090.97
  5. Step 5: Solve for x
    x = 22,994,090.97/5,280.54
  6. Step 6: Final answer
    x = 4,354.50

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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.