Home / 5,809.71-8,017.31-3,157.17

Finding the Fourth Proportional to 5,809.71, 8,017.31 and 3,157.17

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Solution

The fourth proportional to 5,809.71, 8,017.31 and 3,157.17 is: 4,356.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,809.71 : 8,017.31 = 3,157.17 : x
  2. Step 2: Convert to fraction form
    5,809.71/8,017.31 = 3,157.17/x
  3. Step 3: Cross multiply
    5,809.71x = 8,017.31 × 3,157.17
  4. Step 4: Simplify right side
    5,809.71x = 25,312,010.61
  5. Step 5: Solve for x
    x = 25,312,010.61/5,809.71
  6. Step 6: Final answer
    x = 4,356.85

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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.