Home / 7,342.26-10,132.81-4,155.55

Finding the Fourth Proportional to 7,342.26, 10,132.81 and 4,155.55

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Solution

The fourth proportional to 7,342.26, 10,132.81 and 4,155.55 is: 5,734.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.26 : 10,132.81 = 4,155.55 : x
  2. Step 2: Convert to fraction form
    7,342.26/10,132.81 = 4,155.55/x
  3. Step 3: Cross multiply
    7,342.26x = 10,132.81 × 4,155.55
  4. Step 4: Simplify right side
    7,342.26x = 42,107,362.87
  5. Step 5: Solve for x
    x = 42,107,362.87/7,342.26
  6. Step 6: Final answer
    x = 5,734.94

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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.