Home / 2,897.20-4,347.88-2,168.71

Finding the Fourth Proportional to 2,897.20, 4,347.88 and 2,168.71

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Solution

The fourth proportional to 2,897.20, 4,347.88 and 2,168.71 is: 3,254.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.20 : 4,347.88 = 2,168.71 : x
  2. Step 2: Convert to fraction form
    2,897.20/4,347.88 = 2,168.71/x
  3. Step 3: Cross multiply
    2,897.20x = 4,347.88 × 2,168.71
  4. Step 4: Simplify right side
    2,897.20x = 9,429,274.54
  5. Step 5: Solve for x
    x = 9,429,274.54/2,897.20
  6. Step 6: Final answer
    x = 3,254.61

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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.