Home / 2,868.55-4,303.05-1,115

Finding the Fourth Proportional to 2,868.55, 4,303.05 and 1,115

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Solution

The fourth proportional to 2,868.55, 4,303.05 and 1,115 is: 1,672.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.55 : 4,303.05 = 1,115 : x
  2. Step 2: Convert to fraction form
    2,868.55/4,303.05 = 1,115/x
  3. Step 3: Cross multiply
    2,868.55x = 4,303.05 × 1,115
  4. Step 4: Simplify right side
    2,868.55x = 4,797,900.75
  5. Step 5: Solve for x
    x = 4,797,900.75/2,868.55
  6. Step 6: Final answer
    x = 1,672.59

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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.