Home / 1,478.70-2,223.45-1,241.10

Finding the Fourth Proportional to 1,478.70, 2,223.45 and 1,241.10

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Solution

The fourth proportional to 1,478.70, 2,223.45 and 1,241.10 is: 1,866.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478.70 : 2,223.45 = 1,241.10 : x
  2. Step 2: Convert to fraction form
    1,478.70/2,223.45 = 1,241.10/x
  3. Step 3: Cross multiply
    1,478.70x = 2,223.45 × 1,241.10
  4. Step 4: Simplify right side
    1,478.70x = 2,759,523.80
  5. Step 5: Solve for x
    x = 2,759,523.80/1,478.70
  6. Step 6: Final answer
    x = 1,866.18

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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.