Home / 7,342.03-10,132.05-4,155.49

Finding the Fourth Proportional to 7,342.03, 10,132.05 and 4,155.49

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Solution

The fourth proportional to 7,342.03, 10,132.05 and 4,155.49 is: 5,734.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,342.03 : 10,132.05 = 4,155.49 : x
  2. Step 2: Convert to fraction form
    7,342.03/10,132.05 = 4,155.49/x
  3. Step 3: Cross multiply
    7,342.03x = 10,132.05 × 4,155.49
  4. Step 4: Simplify right side
    7,342.03x = 42,103,632.45
  5. Step 5: Solve for x
    x = 42,103,632.45/7,342.03
  6. Step 6: Final answer
    x = 5,734.60

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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.