Home / 5,242.86-7,235.28-2,885.04

Finding the Fourth Proportional to 5,242.86, 7,235.28 and 2,885.04

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Solution

The fourth proportional to 5,242.86, 7,235.28 and 2,885.04 is: 3,981.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,242.86 : 7,235.28 = 2,885.04 : x
  2. Step 2: Convert to fraction form
    5,242.86/7,235.28 = 2,885.04/x
  3. Step 3: Cross multiply
    5,242.86x = 7,235.28 × 2,885.04
  4. Step 4: Simplify right side
    5,242.86x = 20,874,072.21
  5. Step 5: Solve for x
    x = 20,874,072.21/5,242.86
  6. Step 6: Final answer
    x = 3,981.43

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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.