Home / 2,972.34-4,456.08-1,242.18

Finding the Fourth Proportional to 2,972.34, 4,456.08 and 1,242.18

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Solution

The fourth proportional to 2,972.34, 4,456.08 and 1,242.18 is: 1,862.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.34 : 4,456.08 = 1,242.18 : x
  2. Step 2: Convert to fraction form
    2,972.34/4,456.08 = 1,242.18/x
  3. Step 3: Cross multiply
    2,972.34x = 4,456.08 × 1,242.18
  4. Step 4: Simplify right side
    2,972.34x = 5,535,253.45
  5. Step 5: Solve for x
    x = 5,535,253.45/2,972.34
  6. Step 6: Final answer
    x = 1,862.25

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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.