Home / 7,318.36-10,100.18-4,175

Finding the Fourth Proportional to 7,318.36, 10,100.18 and 4,175

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Solution

The fourth proportional to 7,318.36, 10,100.18 and 4,175 is: 5,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,318.36 : 10,100.18 = 4,175 : x
  2. Step 2: Convert to fraction form
    7,318.36/10,100.18 = 4,175/x
  3. Step 3: Cross multiply
    7,318.36x = 10,100.18 × 4,175
  4. Step 4: Simplify right side
    7,318.36x = 42,168,251.50
  5. Step 5: Solve for x
    x = 42,168,251.50/7,318.36
  6. Step 6: Final answer
    x = 5,761.98

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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.