Home / 2,173.40-3,260.70-713.57

Finding the Fourth Proportional to 2,173.40, 3,260.70 and 713.57

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Solution

The fourth proportional to 2,173.40, 3,260.70 and 713.57 is: 1,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,173.40 : 3,260.70 = 713.57 : x
  2. Step 2: Convert to fraction form
    2,173.40/3,260.70 = 713.57/x
  3. Step 3: Cross multiply
    2,173.40x = 3,260.70 × 713.57
  4. Step 4: Simplify right side
    2,173.40x = 2,326,737.70
  5. Step 5: Solve for x
    x = 2,326,737.70/2,173.40
  6. Step 6: Final answer
    x = 1,070.55

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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.