Home / 5,589.40-7,712.87-3,071.48

Finding the Fourth Proportional to 5,589.40, 7,712.87 and 3,071.48

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Solution

The fourth proportional to 5,589.40, 7,712.87 and 3,071.48 is: 4,238.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,589.40 : 7,712.87 = 3,071.48 : x
  2. Step 2: Convert to fraction form
    5,589.40/7,712.87 = 3,071.48/x
  3. Step 3: Cross multiply
    5,589.40x = 7,712.87 × 3,071.48
  4. Step 4: Simplify right side
    5,589.40x = 23,689,925.95
  5. Step 5: Solve for x
    x = 23,689,925.95/5,589.40
  6. Step 6: Final answer
    x = 4,238.37

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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.