Home / 2,947.17-4,423.39-1,561.47

Finding the Fourth Proportional to 2,947.17, 4,423.39 and 1,561.47

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Solution

The fourth proportional to 2,947.17, 4,423.39 and 1,561.47 is: 2,343.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,947.17 : 4,423.39 = 1,561.47 : x
  2. Step 2: Convert to fraction form
    2,947.17/4,423.39 = 1,561.47/x
  3. Step 3: Cross multiply
    2,947.17x = 4,423.39 × 1,561.47
  4. Step 4: Simplify right side
    2,947.17x = 6,906,990.78
  5. Step 5: Solve for x
    x = 6,906,990.78/2,947.17
  6. Step 6: Final answer
    x = 2,343.60

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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.