Home / 1,617.58-2,233.01-1,219.40

Finding the Fourth Proportional to 1,617.58, 2,233.01 and 1,219.40

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Solution

The fourth proportional to 1,617.58, 2,233.01 and 1,219.40 is: 1,683.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,617.58 : 2,233.01 = 1,219.40 : x
  2. Step 2: Convert to fraction form
    1,617.58/2,233.01 = 1,219.40/x
  3. Step 3: Cross multiply
    1,617.58x = 2,233.01 × 1,219.40
  4. Step 4: Simplify right side
    1,617.58x = 2,722,926.70
  5. Step 5: Solve for x
    x = 2,722,926.70/1,617.58
  6. Step 6: Final answer
    x = 1,683.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.