Home / 5,878.40-8,812.64-2,756.76

Finding the Fourth Proportional to 5,878.40, 8,812.64 and 2,756.76

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Solution

The fourth proportional to 5,878.40, 8,812.64 and 2,756.76 is: 4,132.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,878.40 : 8,812.64 = 2,756.76 : x
  2. Step 2: Convert to fraction form
    5,878.40/8,812.64 = 2,756.76/x
  3. Step 3: Cross multiply
    5,878.40x = 8,812.64 × 2,756.76
  4. Step 4: Simplify right side
    5,878.40x = 24,294,319.66
  5. Step 5: Solve for x
    x = 24,294,319.66/5,878.40
  6. Step 6: Final answer
    x = 4,132.82

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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.