Home / 2,897.17-3,998.13-1,570.88

Finding the Fourth Proportional to 2,897.17, 3,998.13 and 1,570.88

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Solution

The fourth proportional to 2,897.17, 3,998.13 and 1,570.88 is: 2,167.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.17 : 3,998.13 = 1,570.88 : x
  2. Step 2: Convert to fraction form
    2,897.17/3,998.13 = 1,570.88/x
  3. Step 3: Cross multiply
    2,897.17x = 3,998.13 × 1,570.88
  4. Step 4: Simplify right side
    2,897.17x = 6,280,574.60
  5. Step 5: Solve for x
    x = 6,280,574.60/2,897.17
  6. Step 6: Final answer
    x = 2,167.83

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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.