Home / 5,117.42-7,060.74-2,879.16

Finding the Fourth Proportional to 5,117.42, 7,060.74 and 2,879.16

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Solution

The fourth proportional to 5,117.42, 7,060.74 and 2,879.16 is: 3,972.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.42 : 7,060.74 = 2,879.16 : x
  2. Step 2: Convert to fraction form
    5,117.42/7,060.74 = 2,879.16/x
  3. Step 3: Cross multiply
    5,117.42x = 7,060.74 × 2,879.16
  4. Step 4: Simplify right side
    5,117.42x = 20,329,000.18
  5. Step 5: Solve for x
    x = 20,329,000.18/5,117.42
  6. Step 6: Final answer
    x = 3,972.51

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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.