Home / 2,870.86-4,299.36-1,634.53

Finding the Fourth Proportional to 2,870.86, 4,299.36 and 1,634.53

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Solution

The fourth proportional to 2,870.86, 4,299.36 and 1,634.53 is: 2,447.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.86 : 4,299.36 = 1,634.53 : x
  2. Step 2: Convert to fraction form
    2,870.86/4,299.36 = 1,634.53/x
  3. Step 3: Cross multiply
    2,870.86x = 4,299.36 × 1,634.53
  4. Step 4: Simplify right side
    2,870.86x = 7,027,432.90
  5. Step 5: Solve for x
    x = 7,027,432.90/2,870.86
  6. Step 6: Final answer
    x = 2,447.85

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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.