Home / 5,688.80-8,540.40-3,058.40

Finding the Fourth Proportional to 5,688.80, 8,540.40 and 3,058.40

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Solution

The fourth proportional to 5,688.80, 8,540.40 and 3,058.40 is: 4,591.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.80 : 8,540.40 = 3,058.40 : x
  2. Step 2: Convert to fraction form
    5,688.80/8,540.40 = 3,058.40/x
  3. Step 3: Cross multiply
    5,688.80x = 8,540.40 × 3,058.40
  4. Step 4: Simplify right side
    5,688.80x = 26,119,959.36
  5. Step 5: Solve for x
    x = 26,119,959.36/5,688.80
  6. Step 6: Final answer
    x = 4,591.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.