Home / 3,587.78-4,949.16-2,261

Finding the Fourth Proportional to 3,587.78, 4,949.16 and 2,261

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Solution

The fourth proportional to 3,587.78, 4,949.16 and 2,261 is: 3,118.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.78 : 4,949.16 = 2,261 : x
  2. Step 2: Convert to fraction form
    3,587.78/4,949.16 = 2,261/x
  3. Step 3: Cross multiply
    3,587.78x = 4,949.16 × 2,261
  4. Step 4: Simplify right side
    3,587.78x = 11,190,050.76
  5. Step 5: Solve for x
    x = 11,190,050.76/3,587.78
  6. Step 6: Final answer
    x = 3,118.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.