Home / 1,770.57-2,444.45-1,247.13

Finding the Fourth Proportional to 1,770.57, 2,444.45 and 1,247.13

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Solution

The fourth proportional to 1,770.57, 2,444.45 and 1,247.13 is: 1,721.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,770.57 : 2,444.45 = 1,247.13 : x
  2. Step 2: Convert to fraction form
    1,770.57/2,444.45 = 1,247.13/x
  3. Step 3: Cross multiply
    1,770.57x = 2,444.45 × 1,247.13
  4. Step 4: Simplify right side
    1,770.57x = 3,048,540.69
  5. Step 5: Solve for x
    x = 3,048,540.69/1,770.57
  6. Step 6: Final answer
    x = 1,721.78

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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.