Home / 5,248.16-7,242.51-2,890.38

Finding the Fourth Proportional to 5,248.16, 7,242.51 and 2,890.38

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Solution

The fourth proportional to 5,248.16, 7,242.51 and 2,890.38 is: 3,988.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.16 : 7,242.51 = 2,890.38 : x
  2. Step 2: Convert to fraction form
    5,248.16/7,242.51 = 2,890.38/x
  3. Step 3: Cross multiply
    5,248.16x = 7,242.51 × 2,890.38
  4. Step 4: Simplify right side
    5,248.16x = 20,933,606.05
  5. Step 5: Solve for x
    x = 20,933,606.05/5,248.16
  6. Step 6: Final answer
    x = 3,988.76

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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.