Home / 7,521.14-11,281.65-1,974.40

Finding the Fourth Proportional to 7,521.14, 11,281.65 and 1,974.40

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Solution

The fourth proportional to 7,521.14, 11,281.65 and 1,974.40 is: 2,961.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,521.14 : 11,281.65 = 1,974.40 : x
  2. Step 2: Convert to fraction form
    7,521.14/11,281.65 = 1,974.40/x
  3. Step 3: Cross multiply
    7,521.14x = 11,281.65 × 1,974.40
  4. Step 4: Simplify right side
    7,521.14x = 22,274,502.54
  5. Step 5: Solve for x
    x = 22,274,502.54/7,521.14
  6. Step 6: Final answer
    x = 2,961.59

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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.