Home / 5,280.51-7,286.61-3,155.62

Finding the Fourth Proportional to 5,280.51, 7,286.61 and 3,155.62

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Solution

The fourth proportional to 5,280.51, 7,286.61 and 3,155.62 is: 4,354.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,280.51 : 7,286.61 = 3,155.62 : x
  2. Step 2: Convert to fraction form
    5,280.51/7,286.61 = 3,155.62/x
  3. Step 3: Cross multiply
    5,280.51x = 7,286.61 × 3,155.62
  4. Step 4: Simplify right side
    5,280.51x = 22,993,738.25
  5. Step 5: Solve for x
    x = 22,993,738.25/5,280.51
  6. Step 6: Final answer
    x = 4,354.45

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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.