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Finding the Fourth Proportional to 2,170.95, 3,256.82 and 710.18

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Solution

The fourth proportional to 2,170.95, 3,256.82 and 710.18 is: 1,065.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,170.95 : 3,256.82 = 710.18 : x
  2. Step 2: Convert to fraction form
    2,170.95/3,256.82 = 710.18/x
  3. Step 3: Cross multiply
    2,170.95x = 3,256.82 × 710.18
  4. Step 4: Simplify right side
    2,170.95x = 2,312,928.43
  5. Step 5: Solve for x
    x = 2,312,928.43/2,170.95
  6. Step 6: Final answer
    x = 1,065.40

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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.