Home / 4,971.71-6,861.51-2,982.76

Finding the Fourth Proportional to 4,971.71, 6,861.51 and 2,982.76

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Solution

The fourth proportional to 4,971.71, 6,861.51 and 2,982.76 is: 4,116.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.71 : 6,861.51 = 2,982.76 : x
  2. Step 2: Convert to fraction form
    4,971.71/6,861.51 = 2,982.76/x
  3. Step 3: Cross multiply
    4,971.71x = 6,861.51 × 2,982.76
  4. Step 4: Simplify right side
    4,971.71x = 20,466,220.41
  5. Step 5: Solve for x
    x = 20,466,220.41/4,971.71
  6. Step 6: Final answer
    x = 4,116.53

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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.