Home / 2,079.95-3,119.93-1,155.29

Finding the Fourth Proportional to 2,079.95, 3,119.93 and 1,155.29

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Solution

The fourth proportional to 2,079.95, 3,119.93 and 1,155.29 is: 1,732.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,079.95 : 3,119.93 = 1,155.29 : x
  2. Step 2: Convert to fraction form
    2,079.95/3,119.93 = 1,155.29/x
  3. Step 3: Cross multiply
    2,079.95x = 3,119.93 × 1,155.29
  4. Step 4: Simplify right side
    2,079.95x = 3,604,402.55
  5. Step 5: Solve for x
    x = 3,604,402.55/2,079.95
  6. Step 6: Final answer
    x = 1,732.93

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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.