Home / 5,811.39-8,721.45-3,038.76

Finding the Fourth Proportional to 5,811.39, 8,721.45 and 3,038.76

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Solution

The fourth proportional to 5,811.39, 8,721.45 and 3,038.76 is: 4,560.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,811.39 : 8,721.45 = 3,038.76 : x
  2. Step 2: Convert to fraction form
    5,811.39/8,721.45 = 3,038.76/x
  3. Step 3: Cross multiply
    5,811.39x = 8,721.45 × 3,038.76
  4. Step 4: Simplify right side
    5,811.39x = 26,502,393.40
  5. Step 5: Solve for x
    x = 26,502,393.40/5,811.39
  6. Step 6: Final answer
    x = 4,560.42

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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.