Home / 5,276.43-7,913.52-1,989.45

Finding the Fourth Proportional to 5,276.43, 7,913.52 and 1,989.45

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Solution

The fourth proportional to 5,276.43, 7,913.52 and 1,989.45 is: 2,983.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,276.43 : 7,913.52 = 1,989.45 : x
  2. Step 2: Convert to fraction form
    5,276.43/7,913.52 = 1,989.45/x
  3. Step 3: Cross multiply
    5,276.43x = 7,913.52 × 1,989.45
  4. Step 4: Simplify right side
    5,276.43x = 15,743,552.36
  5. Step 5: Solve for x
    x = 15,743,552.36/5,276.43
  6. Step 6: Final answer
    x = 2,983.75

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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.