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Finding the Fourth Proportional to 3,562.38, 4,916.08 and 1,990.51

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Solution

The fourth proportional to 3,562.38, 4,916.08 and 1,990.51 is: 2,746.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,562.38 : 4,916.08 = 1,990.51 : x
  2. Step 2: Convert to fraction form
    3,562.38/4,916.08 = 1,990.51/x
  3. Step 3: Cross multiply
    3,562.38x = 4,916.08 × 1,990.51
  4. Step 4: Simplify right side
    3,562.38x = 9,785,506.40
  5. Step 5: Solve for x
    x = 9,785,506.40/3,562.38
  6. Step 6: Final answer
    x = 2,746.90

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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.