Home / 7,116.28-9,820.70-4,131.93

Finding the Fourth Proportional to 7,116.28, 9,820.70 and 4,131.93

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Solution

The fourth proportional to 7,116.28, 9,820.70 and 4,131.93 is: 5,702.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,116.28 : 9,820.70 = 4,131.93 : x
  2. Step 2: Convert to fraction form
    7,116.28/9,820.70 = 4,131.93/x
  3. Step 3: Cross multiply
    7,116.28x = 9,820.70 × 4,131.93
  4. Step 4: Simplify right side
    7,116.28x = 40,578,444.95
  5. Step 5: Solve for x
    x = 40,578,444.95/7,116.28
  6. Step 6: Final answer
    x = 5,702.20

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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.