Home / 3,321.18-4,981.20-1,012.14

Finding the Fourth Proportional to 3,321.18, 4,981.20 and 1,012.14

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Solution

The fourth proportional to 3,321.18, 4,981.20 and 1,012.14 is: 1,518.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,321.18 : 4,981.20 = 1,012.14 : x
  2. Step 2: Convert to fraction form
    3,321.18/4,981.20 = 1,012.14/x
  3. Step 3: Cross multiply
    3,321.18x = 4,981.20 × 1,012.14
  4. Step 4: Simplify right side
    3,321.18x = 5,041,671.77
  5. Step 5: Solve for x
    x = 5,041,671.77/3,321.18
  6. Step 6: Final answer
    x = 1,518.04

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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.