Home / 2,916.08-4,001.20-2,888.56

Finding the Fourth Proportional to 2,916.08, 4,001.20 and 2,888.56

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Solution

The fourth proportional to 2,916.08, 4,001.20 and 2,888.56 is: 3,963.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,916.08 : 4,001.20 = 2,888.56 : x
  2. Step 2: Convert to fraction form
    2,916.08/4,001.20 = 2,888.56/x
  3. Step 3: Cross multiply
    2,916.08x = 4,001.20 × 2,888.56
  4. Step 4: Simplify right side
    2,916.08x = 11,557,706.27
  5. Step 5: Solve for x
    x = 11,557,706.27/2,916.08
  6. Step 6: Final answer
    x = 3,963.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.