Home / 6,876.20-9,489.30-4,045.64

Finding the Fourth Proportional to 6,876.20, 9,489.30 and 4,045.64

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Solution

The fourth proportional to 6,876.20, 9,489.30 and 4,045.64 is: 5,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,876.20 : 9,489.30 = 4,045.64 : x
  2. Step 2: Convert to fraction form
    6,876.20/9,489.30 = 4,045.64/x
  3. Step 3: Cross multiply
    6,876.20x = 9,489.30 × 4,045.64
  4. Step 4: Simplify right side
    6,876.20x = 38,390,291.65
  5. Step 5: Solve for x
    x = 38,390,291.65/6,876.20
  6. Step 6: Final answer
    x = 5,583.07

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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.