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Finding the Fourth Proportional to 2,342.07, 3,512.08 and 698.71

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Solution

The fourth proportional to 2,342.07, 3,512.08 and 698.71 is: 1,047.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,342.07 : 3,512.08 = 698.71 : x
  2. Step 2: Convert to fraction form
    2,342.07/3,512.08 = 698.71/x
  3. Step 3: Cross multiply
    2,342.07x = 3,512.08 × 698.71
  4. Step 4: Simplify right side
    2,342.07x = 2,453,925.42
  5. Step 5: Solve for x
    x = 2,453,925.42/2,342.07
  6. Step 6: Final answer
    x = 1,047.76

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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.