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Finding the Fourth Proportional to 3,562.50, 4,916.25 and 1,990.59

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Solution

The fourth proportional to 3,562.50, 4,916.25 and 1,990.59 is: 2,747.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.50 : 4,916.25 = 1,990.59 : x
  2. Step 2: Convert to fraction form
    3,562.50/4,916.25 = 1,990.59/x
  3. Step 3: Cross multiply
    3,562.50x = 4,916.25 × 1,990.59
  4. Step 4: Simplify right side
    3,562.50x = 9,786,256.52
  5. Step 5: Solve for x
    x = 9,786,256.52/3,562.50
  6. Step 6: Final answer
    x = 2,747.02

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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.