Home / 2,630.16-3,947-1,091.16

Finding the Fourth Proportional to 2,630.16, 3,947 and 1,091.16

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Solution

The fourth proportional to 2,630.16, 3,947 and 1,091.16 is: 1,637.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.16 : 3,947 = 1,091.16 : x
  2. Step 2: Convert to fraction form
    2,630.16/3,947 = 1,091.16/x
  3. Step 3: Cross multiply
    2,630.16x = 3,947 × 1,091.16
  4. Step 4: Simplify right side
    2,630.16x = 4,306,808.52
  5. Step 5: Solve for x
    x = 4,306,808.52/2,630.16
  6. Step 6: Final answer
    x = 1,637.47

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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.