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Finding the Fourth Proportional to 2,095.09, 3,143.09 and 708.40

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Solution

The fourth proportional to 2,095.09, 3,143.09 and 708.40 is: 1,062.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,095.09 : 3,143.09 = 708.40 : x
  2. Step 2: Convert to fraction form
    2,095.09/3,143.09 = 708.40/x
  3. Step 3: Cross multiply
    2,095.09x = 3,143.09 × 708.40
  4. Step 4: Simplify right side
    2,095.09x = 2,226,545.70
  5. Step 5: Solve for x
    x = 2,226,545.70/2,095.09
  6. Step 6: Final answer
    x = 1,062.74

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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.