Home / 5,243.52-7,235.49-2,885.21

Finding the Fourth Proportional to 5,243.52, 7,235.49 and 2,885.21

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Solution

The fourth proportional to 5,243.52, 7,235.49 and 2,885.21 is: 3,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.52 : 7,235.49 = 2,885.21 : x
  2. Step 2: Convert to fraction form
    5,243.52/7,235.49 = 2,885.21/x
  3. Step 3: Cross multiply
    5,243.52x = 7,235.49 × 2,885.21
  4. Step 4: Simplify right side
    5,243.52x = 20,875,908.10
  5. Step 5: Solve for x
    x = 20,875,908.10/5,243.52
  6. Step 6: Final answer
    x = 3,981.28

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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.