Home / 2,689.14-4,030.59-2,381.61

Finding the Fourth Proportional to 2,689.14, 4,030.59 and 2,381.61

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Solution

The fourth proportional to 2,689.14, 4,030.59 and 2,381.61 is: 3,569.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,689.14 : 4,030.59 = 2,381.61 : x
  2. Step 2: Convert to fraction form
    2,689.14/4,030.59 = 2,381.61/x
  3. Step 3: Cross multiply
    2,689.14x = 4,030.59 × 2,381.61
  4. Step 4: Simplify right side
    2,689.14x = 9,599,293.45
  5. Step 5: Solve for x
    x = 9,599,293.45/2,689.14
  6. Step 6: Final answer
    x = 3,569.65

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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.