Home / 7,637.17-11,461.62-3,421.72

Finding the Fourth Proportional to 7,637.17, 11,461.62 and 3,421.72

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Solution

The fourth proportional to 7,637.17, 11,461.62 and 3,421.72 is: 5,135.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,637.17 : 11,461.62 = 3,421.72 : x
  2. Step 2: Convert to fraction form
    7,637.17/11,461.62 = 3,421.72/x
  3. Step 3: Cross multiply
    7,637.17x = 11,461.62 × 3,421.72
  4. Step 4: Simplify right side
    7,637.17x = 39,218,454.39
  5. Step 5: Solve for x
    x = 39,218,454.39/7,637.17
  6. Step 6: Final answer
    x = 5,135.21

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1.5x scale

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.