Home / 1,612.06-2,419.32-1,118.20

Finding the Fourth Proportional to 1,612.06, 2,419.32 and 1,118.20

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Solution

The fourth proportional to 1,612.06, 2,419.32 and 1,118.20 is: 1,678.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,612.06 : 2,419.32 = 1,118.20 : x
  2. Step 2: Convert to fraction form
    1,612.06/2,419.32 = 1,118.20/x
  3. Step 3: Cross multiply
    1,612.06x = 2,419.32 × 1,118.20
  4. Step 4: Simplify right side
    1,612.06x = 2,705,283.62
  5. Step 5: Solve for x
    x = 2,705,283.62/1,612.06
  6. Step 6: Final answer
    x = 1,678.15

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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.