Home / 1,343.18-2,012.60-1,127.18

Finding the Fourth Proportional to 1,343.18, 2,012.60 and 1,127.18

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Solution

The fourth proportional to 1,343.18, 2,012.60 and 1,127.18 is: 1,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,343.18 : 2,012.60 = 1,127.18 : x
  2. Step 2: Convert to fraction form
    1,343.18/2,012.60 = 1,127.18/x
  3. Step 3: Cross multiply
    1,343.18x = 2,012.60 × 1,127.18
  4. Step 4: Simplify right side
    1,343.18x = 2,268,555.22
  5. Step 5: Solve for x
    x = 2,268,555.22/1,343.18
  6. Step 6: Final answer
    x = 1,688.95

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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.