Home / 10,580.20-15,870.95-2,789.01

Finding the Fourth Proportional to 10,580.20, 15,870.95 and 2,789.01

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Solution

The fourth proportional to 10,580.20, 15,870.95 and 2,789.01 is: 4,183.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,580.20 : 15,870.95 = 2,789.01 : x
  2. Step 2: Convert to fraction form
    10,580.20/15,870.95 = 2,789.01/x
  3. Step 3: Cross multiply
    10,580.20x = 15,870.95 × 2,789.01
  4. Step 4: Simplify right side
    10,580.20x = 44,264,284.91
  5. Step 5: Solve for x
    x = 44,264,284.91/10,580.20
  6. Step 6: Final answer
    x = 4,183.69

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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.