Home / 5,345.55-7,377.06-2,987.57

Finding the Fourth Proportional to 5,345.55, 7,377.06 and 2,987.57

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Solution

The fourth proportional to 5,345.55, 7,377.06 and 2,987.57 is: 4,122.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,345.55 : 7,377.06 = 2,987.57 : x
  2. Step 2: Convert to fraction form
    5,345.55/7,377.06 = 2,987.57/x
  3. Step 3: Cross multiply
    5,345.55x = 7,377.06 × 2,987.57
  4. Step 4: Simplify right side
    5,345.55x = 22,039,446.26
  5. Step 5: Solve for x
    x = 22,039,446.26/5,345.55
  6. Step 6: Final answer
    x = 4,122.95

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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.