Home / 2,897.22-3,998.12-1,570.92

Finding the Fourth Proportional to 2,897.22, 3,998.12 and 1,570.92

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Solution

The fourth proportional to 2,897.22, 3,998.12 and 1,570.92 is: 2,167.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.22 : 3,998.12 = 1,570.92 : x
  2. Step 2: Convert to fraction form
    2,897.22/3,998.12 = 1,570.92/x
  3. Step 3: Cross multiply
    2,897.22x = 3,998.12 × 1,570.92
  4. Step 4: Simplify right side
    2,897.22x = 6,280,726.67
  5. Step 5: Solve for x
    x = 6,280,726.67/2,897.22
  6. Step 6: Final answer
    x = 2,167.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.