Home / 4,991.28-6,881.76-3,810.48

Finding the Fourth Proportional to 4,991.28, 6,881.76 and 3,810.48

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Solution

The fourth proportional to 4,991.28, 6,881.76 and 3,810.48 is: 5,253.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,991.28 : 6,881.76 = 3,810.48 : x
  2. Step 2: Convert to fraction form
    4,991.28/6,881.76 = 3,810.48/x
  3. Step 3: Cross multiply
    4,991.28x = 6,881.76 × 3,810.48
  4. Step 4: Simplify right side
    4,991.28x = 26,222,808.84
  5. Step 5: Solve for x
    x = 26,222,808.84/4,991.28
  6. Step 6: Final answer
    x = 5,253.72

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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.