Home / 3,454.95-5,181.69-1,115.17

Finding the Fourth Proportional to 3,454.95, 5,181.69 and 1,115.17

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Solution

The fourth proportional to 3,454.95, 5,181.69 and 1,115.17 is: 1,672.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,454.95 : 5,181.69 = 1,115.17 : x
  2. Step 2: Convert to fraction form
    3,454.95/5,181.69 = 1,115.17/x
  3. Step 3: Cross multiply
    3,454.95x = 5,181.69 × 1,115.17
  4. Step 4: Simplify right side
    3,454.95x = 5,778,465.24
  5. Step 5: Solve for x
    x = 5,778,465.24/3,454.95
  6. Step 6: Final answer
    x = 1,672.52

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1.5x scale

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.