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Finding the Fourth Proportional to 2,772.89, 4,159.38 and 924.02

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Solution

The fourth proportional to 2,772.89, 4,159.38 and 924.02 is: 1,386.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,772.89 : 4,159.38 = 924.02 : x
  2. Step 2: Convert to fraction form
    2,772.89/4,159.38 = 924.02/x
  3. Step 3: Cross multiply
    2,772.89x = 4,159.38 × 924.02
  4. Step 4: Simplify right side
    2,772.89x = 3,843,329.08
  5. Step 5: Solve for x
    x = 3,843,329.08/2,772.89
  6. Step 6: Final answer
    x = 1,386.04

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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.