Home / 2,187.60-3,294.24-2,123.04

Finding the Fourth Proportional to 2,187.60, 3,294.24 and 2,123.04

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Solution

The fourth proportional to 2,187.60, 3,294.24 and 2,123.04 is: 3,197.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,187.60 : 3,294.24 = 2,123.04 : x
  2. Step 2: Convert to fraction form
    2,187.60/3,294.24 = 2,123.04/x
  3. Step 3: Cross multiply
    2,187.60x = 3,294.24 × 2,123.04
  4. Step 4: Simplify right side
    2,187.60x = 6,993,803.29
  5. Step 5: Solve for x
    x = 6,993,803.29/2,187.60
  6. Step 6: Final answer
    x = 3,197.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.