Home / 2,515.05-3,471.66-1,521.18

Finding the Fourth Proportional to 2,515.05, 3,471.66 and 1,521.18

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Solution

The fourth proportional to 2,515.05, 3,471.66 and 1,521.18 is: 2,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,515.05 : 3,471.66 = 1,521.18 : x
  2. Step 2: Convert to fraction form
    2,515.05/3,471.66 = 1,521.18/x
  3. Step 3: Cross multiply
    2,515.05x = 3,471.66 × 1,521.18
  4. Step 4: Simplify right side
    2,515.05x = 5,281,019.76
  5. Step 5: Solve for x
    x = 5,281,019.76/2,515.05
  6. Step 6: Final answer
    x = 2,099.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.