Home / 7,160.25-9,881.15-4,135.98

Finding the Fourth Proportional to 7,160.25, 9,881.15 and 4,135.98

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Solution

The fourth proportional to 7,160.25, 9,881.15 and 4,135.98 is: 5,707.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,160.25 : 9,881.15 = 4,135.98 : x
  2. Step 2: Convert to fraction form
    7,160.25/9,881.15 = 4,135.98/x
  3. Step 3: Cross multiply
    7,160.25x = 9,881.15 × 4,135.98
  4. Step 4: Simplify right side
    7,160.25x = 40,868,218.10
  5. Step 5: Solve for x
    x = 40,868,218.10/7,160.25
  6. Step 6: Final answer
    x = 5,707.65

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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.