Home / 5,319.13-7,340.40-2,961.43

Finding the Fourth Proportional to 5,319.13, 7,340.40 and 2,961.43

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Solution

The fourth proportional to 5,319.13, 7,340.40 and 2,961.43 is: 4,086.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,319.13 : 7,340.40 = 2,961.43 : x
  2. Step 2: Convert to fraction form
    5,319.13/7,340.40 = 2,961.43/x
  3. Step 3: Cross multiply
    5,319.13x = 7,340.40 × 2,961.43
  4. Step 4: Simplify right side
    5,319.13x = 21,738,080.77
  5. Step 5: Solve for x
    x = 21,738,080.77/5,319.13
  6. Step 6: Final answer
    x = 4,086.77

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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.