Home / 2,677.14-4,014.72-921.65

Finding the Fourth Proportional to 2,677.14, 4,014.72 and 921.65

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Solution

The fourth proportional to 2,677.14, 4,014.72 and 921.65 is: 1,382.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,677.14 : 4,014.72 = 921.65 : x
  2. Step 2: Convert to fraction form
    2,677.14/4,014.72 = 921.65/x
  3. Step 3: Cross multiply
    2,677.14x = 4,014.72 × 921.65
  4. Step 4: Simplify right side
    2,677.14x = 3,700,166.69
  5. Step 5: Solve for x
    x = 3,700,166.69/2,677.14
  6. Step 6: Final answer
    x = 1,382.13

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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.