Home / 1,770.20-2,443.16-1,013.92

Finding the Fourth Proportional to 1,770.20, 2,443.16 and 1,013.92

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Solution

The fourth proportional to 1,770.20, 2,443.16 and 1,013.92 is: 1,399.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.20 : 2,443.16 = 1,013.92 : x
  2. Step 2: Convert to fraction form
    1,770.20/2,443.16 = 1,013.92/x
  3. Step 3: Cross multiply
    1,770.20x = 2,443.16 × 1,013.92
  4. Step 4: Simplify right side
    1,770.20x = 2,477,168.79
  5. Step 5: Solve for x
    x = 2,477,168.79/1,770.20
  6. Step 6: Final answer
    x = 1,399.37

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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.