Home / 5,246.71-7,240.32-2,888.87

Finding the Fourth Proportional to 5,246.71, 7,240.32 and 2,888.87

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Solution

The fourth proportional to 5,246.71, 7,240.32 and 2,888.87 is: 3,986.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,246.71 : 7,240.32 = 2,888.87 : x
  2. Step 2: Convert to fraction form
    5,246.71/7,240.32 = 2,888.87/x
  3. Step 3: Cross multiply
    5,246.71x = 7,240.32 × 2,888.87
  4. Step 4: Simplify right side
    5,246.71x = 20,916,307.04
  5. Step 5: Solve for x
    x = 20,916,307.04/5,246.71
  6. Step 6: Final answer
    x = 3,986.56

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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.