Home / 5,319.52-7,340.32-2,961.60

Finding the Fourth Proportional to 5,319.52, 7,340.32 and 2,961.60

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Solution

The fourth proportional to 5,319.52, 7,340.32 and 2,961.60 is: 4,086.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.52 : 7,340.32 = 2,961.60 : x
  2. Step 2: Convert to fraction form
    5,319.52/7,340.32 = 2,961.60/x
  3. Step 3: Cross multiply
    5,319.52x = 7,340.32 × 2,961.60
  4. Step 4: Simplify right side
    5,319.52x = 21,739,091.71
  5. Step 5: Solve for x
    x = 21,739,091.71/5,319.52
  6. Step 6: Final answer
    x = 4,086.66

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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.