Home / 3,587.94-5,386.59-2,766.78

Finding the Fourth Proportional to 3,587.94, 5,386.59 and 2,766.78

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Solution

The fourth proportional to 3,587.94, 5,386.59 and 2,766.78 is: 4,153.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.94 : 5,386.59 = 2,766.78 : x
  2. Step 2: Convert to fraction form
    3,587.94/5,386.59 = 2,766.78/x
  3. Step 3: Cross multiply
    3,587.94x = 5,386.59 × 2,766.78
  4. Step 4: Simplify right side
    3,587.94x = 14,903,509.48
  5. Step 5: Solve for x
    x = 14,903,509.48/3,587.94
  6. Step 6: Final answer
    x = 4,153.78

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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.