Home / 1,442.46-2,161.65-1,112.13

Finding the Fourth Proportional to 1,442.46, 2,161.65 and 1,112.13

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Solution

The fourth proportional to 1,442.46, 2,161.65 and 1,112.13 is: 1,666.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442.46 : 2,161.65 = 1,112.13 : x
  2. Step 2: Convert to fraction form
    1,442.46/2,161.65 = 1,112.13/x
  3. Step 3: Cross multiply
    1,442.46x = 2,161.65 × 1,112.13
  4. Step 4: Simplify right side
    1,442.46x = 2,404,035.81
  5. Step 5: Solve for x
    x = 2,404,035.81/1,442.46
  6. Step 6: Final answer
    x = 1,666.62

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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.