Home / 5,308.10-7,966.40-3,118.66

Finding the Fourth Proportional to 5,308.10, 7,966.40 and 3,118.66

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Solution

The fourth proportional to 5,308.10, 7,966.40 and 3,118.66 is: 4,680.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,308.10 : 7,966.40 = 3,118.66 : x
  2. Step 2: Convert to fraction form
    5,308.10/7,966.40 = 3,118.66/x
  3. Step 3: Cross multiply
    5,308.10x = 7,966.40 × 3,118.66
  4. Step 4: Simplify right side
    5,308.10x = 24,844,493.02
  5. Step 5: Solve for x
    x = 24,844,493.02/5,308.10
  6. Step 6: Final answer
    x = 4,680.49

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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.