Home / 3,611.05-5,417.38-1,145.95

Finding the Fourth Proportional to 3,611.05, 5,417.38 and 1,145.95

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Solution

The fourth proportional to 3,611.05, 5,417.38 and 1,145.95 is: 1,719.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,611.05 : 5,417.38 = 1,145.95 : x
  2. Step 2: Convert to fraction form
    3,611.05/5,417.38 = 1,145.95/x
  3. Step 3: Cross multiply
    3,611.05x = 5,417.38 × 1,145.95
  4. Step 4: Simplify right side
    3,611.05x = 6,208,034.50
  5. Step 5: Solve for x
    x = 6,208,034.50/3,611.05
  6. Step 6: Final answer
    x = 1,719.18

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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.