Home / 2,899.12-4,342.92-1,870

Finding the Fourth Proportional to 2,899.12, 4,342.92 and 1,870

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Solution

The fourth proportional to 2,899.12, 4,342.92 and 1,870 is: 2,801.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,899.12 : 4,342.92 = 1,870 : x
  2. Step 2: Convert to fraction form
    2,899.12/4,342.92 = 1,870/x
  3. Step 3: Cross multiply
    2,899.12x = 4,342.92 × 1,870
  4. Step 4: Simplify right side
    2,899.12x = 8,121,260.40
  5. Step 5: Solve for x
    x = 8,121,260.40/2,899.12
  6. Step 6: Final answer
    x = 2,801.28

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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.