Home / 5,920.47-8,873.28-3,140.28

Finding the Fourth Proportional to 5,920.47, 8,873.28 and 3,140.28

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Solution

The fourth proportional to 5,920.47, 8,873.28 and 3,140.28 is: 4,706.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,920.47 : 8,873.28 = 3,140.28 : x
  2. Step 2: Convert to fraction form
    5,920.47/8,873.28 = 3,140.28/x
  3. Step 3: Cross multiply
    5,920.47x = 8,873.28 × 3,140.28
  4. Step 4: Simplify right side
    5,920.47x = 27,864,583.72
  5. Step 5: Solve for x
    x = 27,864,583.72/5,920.47
  6. Step 6: Final answer
    x = 4,706.48

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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.