Home / 5,713.34-7,876.85-4,118.65

Finding the Fourth Proportional to 5,713.34, 7,876.85 and 4,118.65

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Solution

The fourth proportional to 5,713.34, 7,876.85 and 4,118.65 is: 5,678.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,713.34 : 7,876.85 = 4,118.65 : x
  2. Step 2: Convert to fraction form
    5,713.34/7,876.85 = 4,118.65/x
  3. Step 3: Cross multiply
    5,713.34x = 7,876.85 × 4,118.65
  4. Step 4: Simplify right side
    5,713.34x = 32,441,947.97
  5. Step 5: Solve for x
    x = 32,441,947.97/5,713.34
  6. Step 6: Final answer
    x = 5,678.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.