Home / 2,630.81-3,947.02-1,577.79

Finding the Fourth Proportional to 2,630.81, 3,947.02 and 1,577.79

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Solution

The fourth proportional to 2,630.81, 3,947.02 and 1,577.79 is: 2,367.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630.81 : 3,947.02 = 1,577.79 : x
  2. Step 2: Convert to fraction form
    2,630.81/3,947.02 = 1,577.79/x
  3. Step 3: Cross multiply
    2,630.81x = 3,947.02 × 1,577.79
  4. Step 4: Simplify right side
    2,630.81x = 6,227,564.74
  5. Step 5: Solve for x
    x = 6,227,564.74/2,630.81
  6. Step 6: Final answer
    x = 2,367.16

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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.