Home / 5,248.71-7,242.96-2,890.41

Finding the Fourth Proportional to 5,248.71, 7,242.96 and 2,890.41

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Solution

The fourth proportional to 5,248.71, 7,242.96 and 2,890.41 is: 3,988.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.71 : 7,242.96 = 2,890.41 : x
  2. Step 2: Convert to fraction form
    5,248.71/7,242.96 = 2,890.41/x
  3. Step 3: Cross multiply
    5,248.71x = 7,242.96 × 2,890.41
  4. Step 4: Simplify right side
    5,248.71x = 20,935,124.01
  5. Step 5: Solve for x
    x = 20,935,124.01/5,248.71
  6. Step 6: Final answer
    x = 3,988.62

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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.