Home / 2,372.20-3,558.56-985.35

Finding the Fourth Proportional to 2,372.20, 3,558.56 and 985.35

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Solution

The fourth proportional to 2,372.20, 3,558.56 and 985.35 is: 1,478.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,372.20 : 3,558.56 = 985.35 : x
  2. Step 2: Convert to fraction form
    2,372.20/3,558.56 = 985.35/x
  3. Step 3: Cross multiply
    2,372.20x = 3,558.56 × 985.35
  4. Step 4: Simplify right side
    2,372.20x = 3,506,427.10
  5. Step 5: Solve for x
    x = 3,506,427.10/2,372.20
  6. Step 6: Final answer
    x = 1,478.13

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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.