Home / 2,539.08-3,803.56-1,988.68

Finding the Fourth Proportional to 2,539.08, 3,803.56 and 1,988.68

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Solution

The fourth proportional to 2,539.08, 3,803.56 and 1,988.68 is: 2,979.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539.08 : 3,803.56 = 1,988.68 : x
  2. Step 2: Convert to fraction form
    2,539.08/3,803.56 = 1,988.68/x
  3. Step 3: Cross multiply
    2,539.08x = 3,803.56 × 1,988.68
  4. Step 4: Simplify right side
    2,539.08x = 7,564,063.70
  5. Step 5: Solve for x
    x = 7,564,063.70/2,539.08
  6. Step 6: Final answer
    x = 2,979.06

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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.