Home / 5,721.85-7,899.96-4,393.18

Finding the Fourth Proportional to 5,721.85, 7,899.96 and 4,393.18

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Solution

The fourth proportional to 5,721.85, 7,899.96 and 4,393.18 is: 6,065.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,721.85 : 7,899.96 = 4,393.18 : x
  2. Step 2: Convert to fraction form
    5,721.85/7,899.96 = 4,393.18/x
  3. Step 3: Cross multiply
    5,721.85x = 7,899.96 × 4,393.18
  4. Step 4: Simplify right side
    5,721.85x = 34,705,946.27
  5. Step 5: Solve for x
    x = 34,705,946.27/5,721.85
  6. Step 6: Final answer
    x = 6,065.51

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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.