Home / 4,985.86-6,881.02-2,747.96

Finding the Fourth Proportional to 4,985.86, 6,881.02 and 2,747.96

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Solution

The fourth proportional to 4,985.86, 6,881.02 and 2,747.96 is: 3,792.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,985.86 : 6,881.02 = 2,747.96 : x
  2. Step 2: Convert to fraction form
    4,985.86/6,881.02 = 2,747.96/x
  3. Step 3: Cross multiply
    4,985.86x = 6,881.02 × 2,747.96
  4. Step 4: Simplify right side
    4,985.86x = 18,908,767.72
  5. Step 5: Solve for x
    x = 18,908,767.72/4,985.86
  6. Step 6: Final answer
    x = 3,792.48

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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.