Home / 5,637.91-8,455.15-1,938.01

Finding the Fourth Proportional to 5,637.91, 8,455.15 and 1,938.01

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Solution

The fourth proportional to 5,637.91, 8,455.15 and 1,938.01 is: 2,906.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,637.91 : 8,455.15 = 1,938.01 : x
  2. Step 2: Convert to fraction form
    5,637.91/8,455.15 = 1,938.01/x
  3. Step 3: Cross multiply
    5,637.91x = 8,455.15 × 1,938.01
  4. Step 4: Simplify right side
    5,637.91x = 16,386,165.25
  5. Step 5: Solve for x
    x = 16,386,165.25/5,637.91
  6. Step 6: Final answer
    x = 2,906.43

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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.