Home / 2,897.19-3,998.12-1,570.89

Finding the Fourth Proportional to 2,897.19, 3,998.12 and 1,570.89

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Solution

The fourth proportional to 2,897.19, 3,998.12 and 1,570.89 is: 2,167.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,897.19 : 3,998.12 = 1,570.89 : x
  2. Step 2: Convert to fraction form
    2,897.19/3,998.12 = 1,570.89/x
  3. Step 3: Cross multiply
    2,897.19x = 3,998.12 × 1,570.89
  4. Step 4: Simplify right side
    2,897.19x = 6,280,595.66
  5. Step 5: Solve for x
    x = 6,280,595.66/2,897.19
  6. Step 6: Final answer
    x = 2,167.82

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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.