Home / 1,350.46-2,020.80-1,117.18

Finding the Fourth Proportional to 1,350.46, 2,020.80 and 1,117.18

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Solution

The fourth proportional to 1,350.46, 2,020.80 and 1,117.18 is: 1,671.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,350.46 : 2,020.80 = 1,117.18 : x
  2. Step 2: Convert to fraction form
    1,350.46/2,020.80 = 1,117.18/x
  3. Step 3: Cross multiply
    1,350.46x = 2,020.80 × 1,117.18
  4. Step 4: Simplify right side
    1,350.46x = 2,257,597.34
  5. Step 5: Solve for x
    x = 2,257,597.34/1,350.46
  6. Step 6: Final answer
    x = 1,671.72

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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.