Home / 2,569.76-3,856.80-1,110.02

Finding the Fourth Proportional to 2,569.76, 3,856.80 and 1,110.02

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Solution

The fourth proportional to 2,569.76, 3,856.80 and 1,110.02 is: 1,665.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,569.76 : 3,856.80 = 1,110.02 : x
  2. Step 2: Convert to fraction form
    2,569.76/3,856.80 = 1,110.02/x
  3. Step 3: Cross multiply
    2,569.76x = 3,856.80 × 1,110.02
  4. Step 4: Simplify right side
    2,569.76x = 4,281,125.14
  5. Step 5: Solve for x
    x = 4,281,125.14/2,569.76
  6. Step 6: Final answer
    x = 1,665.96

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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.