Home / 2,643.20-3,970.92-1,659.08

Finding the Fourth Proportional to 2,643.20, 3,970.92 and 1,659.08

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Solution

The fourth proportional to 2,643.20, 3,970.92 and 1,659.08 is: 2,492.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.20 : 3,970.92 = 1,659.08 : x
  2. Step 2: Convert to fraction form
    2,643.20/3,970.92 = 1,659.08/x
  3. Step 3: Cross multiply
    2,643.20x = 3,970.92 × 1,659.08
  4. Step 4: Simplify right side
    2,643.20x = 6,588,073.95
  5. Step 5: Solve for x
    x = 6,588,073.95/2,643.20
  6. Step 6: Final answer
    x = 2,492.46

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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.