Home / 2,819.08-3,890.27-1,560.06

Finding the Fourth Proportional to 2,819.08, 3,890.27 and 1,560.06

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Solution

The fourth proportional to 2,819.08, 3,890.27 and 1,560.06 is: 2,152.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,819.08 : 3,890.27 = 1,560.06 : x
  2. Step 2: Convert to fraction form
    2,819.08/3,890.27 = 1,560.06/x
  3. Step 3: Cross multiply
    2,819.08x = 3,890.27 × 1,560.06
  4. Step 4: Simplify right side
    2,819.08x = 6,069,058.52
  5. Step 5: Solve for x
    x = 6,069,058.52/2,819.08
  6. Step 6: Final answer
    x = 2,152.85

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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.