Home / 7,154.40-9,874.32-4,171.98

Finding the Fourth Proportional to 7,154.40, 9,874.32 and 4,171.98

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Solution

The fourth proportional to 7,154.40, 9,874.32 and 4,171.98 is: 5,758.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,154.40 : 9,874.32 = 4,171.98 : x
  2. Step 2: Convert to fraction form
    7,154.40/9,874.32 = 4,171.98/x
  3. Step 3: Cross multiply
    7,154.40x = 9,874.32 × 4,171.98
  4. Step 4: Simplify right side
    7,154.40x = 41,195,465.55
  5. Step 5: Solve for x
    x = 41,195,465.55/7,154.40
  6. Step 6: Final answer
    x = 5,758.06

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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.