Home / 4,971.38-6,860.50-2,876.72

Finding the Fourth Proportional to 4,971.38, 6,860.50 and 2,876.72

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Solution

The fourth proportional to 4,971.38, 6,860.50 and 2,876.72 is: 3,969.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,971.38 : 6,860.50 = 2,876.72 : x
  2. Step 2: Convert to fraction form
    4,971.38/6,860.50 = 2,876.72/x
  3. Step 3: Cross multiply
    4,971.38x = 6,860.50 × 2,876.72
  4. Step 4: Simplify right side
    4,971.38x = 19,735,696.07
  5. Step 5: Solve for x
    x = 19,735,696.07/4,971.38
  6. Step 6: Final answer
    x = 3,969.87

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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.