Home / 5,739.66-7,922.28-5,391.18

Finding the Fourth Proportional to 5,739.66, 7,922.28 and 5,391.18

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Solution

The fourth proportional to 5,739.66, 7,922.28 and 5,391.18 is: 7,441.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,739.66 : 7,922.28 = 5,391.18 : x
  2. Step 2: Convert to fraction form
    5,739.66/7,922.28 = 5,391.18/x
  3. Step 3: Cross multiply
    5,739.66x = 7,922.28 × 5,391.18
  4. Step 4: Simplify right side
    5,739.66x = 42,710,437.49
  5. Step 5: Solve for x
    x = 42,710,437.49/5,739.66
  6. Step 6: Final answer
    x = 7,441.28

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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.