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Finding the Fourth Proportional to 3,562.34, 4,916.25 and 1,990.55

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Solution

The fourth proportional to 3,562.34, 4,916.25 and 1,990.55 is: 2,747.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.34 : 4,916.25 = 1,990.55 : x
  2. Step 2: Convert to fraction form
    3,562.34/4,916.25 = 1,990.55/x
  3. Step 3: Cross multiply
    3,562.34x = 4,916.25 × 1,990.55
  4. Step 4: Simplify right side
    3,562.34x = 9,786,041.44
  5. Step 5: Solve for x
    x = 9,786,041.44/3,562.34
  6. Step 6: Final answer
    x = 2,747.08

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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.