Home / 5,118.05-7,060.50-3,325.40

Finding the Fourth Proportional to 5,118.05, 7,060.50 and 3,325.40

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Solution

The fourth proportional to 5,118.05, 7,060.50 and 3,325.40 is: 4,587.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.05 : 7,060.50 = 3,325.40 : x
  2. Step 2: Convert to fraction form
    5,118.05/7,060.50 = 3,325.40/x
  3. Step 3: Cross multiply
    5,118.05x = 7,060.50 × 3,325.40
  4. Step 4: Simplify right side
    5,118.05x = 23,478,951.40
  5. Step 5: Solve for x
    x = 23,478,951.40/5,118.05
  6. Step 6: Final answer
    x = 4,587.48

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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.