Home / 4,117.98-5,687.61-3,121.53

Finding the Fourth Proportional to 4,117.98, 5,687.61 and 3,121.53

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Solution

The fourth proportional to 4,117.98, 5,687.61 and 3,121.53 is: 4,311.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,117.98 : 5,687.61 = 3,121.53 : x
  2. Step 2: Convert to fraction form
    4,117.98/5,687.61 = 3,121.53/x
  3. Step 3: Cross multiply
    4,117.98x = 5,687.61 × 3,121.53
  4. Step 4: Simplify right side
    4,117.98x = 17,754,045.24
  5. Step 5: Solve for x
    x = 17,754,045.24/4,117.98
  6. Step 6: Final answer
    x = 4,311.35

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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.