Home / 5,248.82-7,243.27-2,890.91

Finding the Fourth Proportional to 5,248.82, 7,243.27 and 2,890.91

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Solution

The fourth proportional to 5,248.82, 7,243.27 and 2,890.91 is: 3,989.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,248.82 : 7,243.27 = 2,890.91 : x
  2. Step 2: Convert to fraction form
    5,248.82/7,243.27 = 2,890.91/x
  3. Step 3: Cross multiply
    5,248.82x = 7,243.27 × 2,890.91
  4. Step 4: Simplify right side
    5,248.82x = 20,939,598.23
  5. Step 5: Solve for x
    x = 20,939,598.23/5,248.82
  6. Step 6: Final answer
    x = 3,989.40

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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.