Home / 3,589.50-5,386.28-1,397.95

Finding the Fourth Proportional to 3,589.50, 5,386.28 and 1,397.95

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Solution

The fourth proportional to 3,589.50, 5,386.28 and 1,397.95 is: 2,097.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,589.50 : 5,386.28 = 1,397.95 : x
  2. Step 2: Convert to fraction form
    3,589.50/5,386.28 = 1,397.95/x
  3. Step 3: Cross multiply
    3,589.50x = 5,386.28 × 1,397.95
  4. Step 4: Simplify right side
    3,589.50x = 7,529,750.13
  5. Step 5: Solve for x
    x = 7,529,750.13/3,589.50
  6. Step 6: Final answer
    x = 2,097.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.