Home / 4,986.79-6,881.56-3,191.74

Finding the Fourth Proportional to 4,986.79, 6,881.56 and 3,191.74

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Solution

The fourth proportional to 4,986.79, 6,881.56 and 3,191.74 is: 4,404.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,986.79 : 6,881.56 = 3,191.74 : x
  2. Step 2: Convert to fraction form
    4,986.79/6,881.56 = 3,191.74/x
  3. Step 3: Cross multiply
    4,986.79x = 6,881.56 × 3,191.74
  4. Step 4: Simplify right side
    4,986.79x = 21,964,125.13
  5. Step 5: Solve for x
    x = 21,964,125.13/4,986.79
  6. Step 6: Final answer
    x = 4,404.46

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1.5x scale

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.