Home / 4,869.90-7,304.31-1,407.15

Finding the Fourth Proportional to 4,869.90, 7,304.31 and 1,407.15

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Solution

The fourth proportional to 4,869.90, 7,304.31 and 1,407.15 is: 2,110.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,869.90 : 7,304.31 = 1,407.15 : x
  2. Step 2: Convert to fraction form
    4,869.90/7,304.31 = 1,407.15/x
  3. Step 3: Cross multiply
    4,869.90x = 7,304.31 × 1,407.15
  4. Step 4: Simplify right side
    4,869.90x = 10,278,259.82
  5. Step 5: Solve for x
    x = 10,278,259.82/4,869.90
  6. Step 6: Final answer
    x = 2,110.57

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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.