Home / 7,299.39-10,073.40-4,155.78

Finding the Fourth Proportional to 7,299.39, 10,073.40 and 4,155.78

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Solution

The fourth proportional to 7,299.39, 10,073.40 and 4,155.78 is: 5,735.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,299.39 : 10,073.40 = 4,155.78 : x
  2. Step 2: Convert to fraction form
    7,299.39/10,073.40 = 4,155.78/x
  3. Step 3: Cross multiply
    7,299.39x = 10,073.40 × 4,155.78
  4. Step 4: Simplify right side
    7,299.39x = 41,862,834.25
  5. Step 5: Solve for x
    x = 41,862,834.25/7,299.39
  6. Step 6: Final answer
    x = 5,735.11

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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.