Home / 2,660.52-3,988.14-1,563.40

Finding the Fourth Proportional to 2,660.52, 3,988.14 and 1,563.40

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Solution

The fourth proportional to 2,660.52, 3,988.14 and 1,563.40 is: 2,343.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660.52 : 3,988.14 = 1,563.40 : x
  2. Step 2: Convert to fraction form
    2,660.52/3,988.14 = 1,563.40/x
  3. Step 3: Cross multiply
    2,660.52x = 3,988.14 × 1,563.40
  4. Step 4: Simplify right side
    2,660.52x = 6,235,058.08
  5. Step 5: Solve for x
    x = 6,235,058.08/2,660.52
  6. Step 6: Final answer
    x = 2,343.55

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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.