Home / 2,657.78-3,985.75-1,014.79

Finding the Fourth Proportional to 2,657.78, 3,985.75 and 1,014.79

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Solution

The fourth proportional to 2,657.78, 3,985.75 and 1,014.79 is: 1,521.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,657.78 : 3,985.75 = 1,014.79 : x
  2. Step 2: Convert to fraction form
    2,657.78/3,985.75 = 1,014.79/x
  3. Step 3: Cross multiply
    2,657.78x = 3,985.75 × 1,014.79
  4. Step 4: Simplify right side
    2,657.78x = 4,044,699.24
  5. Step 5: Solve for x
    x = 4,044,699.24/2,657.78
  6. Step 6: Final answer
    x = 1,521.83

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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.