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Finding the Fourth Proportional to 2,341.72, 3,512.46 and 698.28

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Solution

The fourth proportional to 2,341.72, 3,512.46 and 698.28 is: 1,047.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,341.72 : 3,512.46 = 698.28 : x
  2. Step 2: Convert to fraction form
    2,341.72/3,512.46 = 698.28/x
  3. Step 3: Cross multiply
    2,341.72x = 3,512.46 × 698.28
  4. Step 4: Simplify right side
    2,341.72x = 2,452,680.57
  5. Step 5: Solve for x
    x = 2,452,680.57/2,341.72
  6. Step 6: Final answer
    x = 1,047.38

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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.