Home / 2,974.40-4,461.72-1,125.44

Finding the Fourth Proportional to 2,974.40, 4,461.72 and 1,125.44

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Solution

The fourth proportional to 2,974.40, 4,461.72 and 1,125.44 is: 1,688.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,974.40 : 4,461.72 = 1,125.44 : x
  2. Step 2: Convert to fraction form
    2,974.40/4,461.72 = 1,125.44/x
  3. Step 3: Cross multiply
    2,974.40x = 4,461.72 × 1,125.44
  4. Step 4: Simplify right side
    2,974.40x = 5,021,398.16
  5. Step 5: Solve for x
    x = 5,021,398.16/2,974.40
  6. Step 6: Final answer
    x = 1,688.21

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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.