Home / 5,243.28-7,235.80-2,885.44

Finding the Fourth Proportional to 5,243.28, 7,235.80 and 2,885.44

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Solution

The fourth proportional to 5,243.28, 7,235.80 and 2,885.44 is: 3,981.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.28 : 7,235.80 = 2,885.44 : x
  2. Step 2: Convert to fraction form
    5,243.28/7,235.80 = 2,885.44/x
  3. Step 3: Cross multiply
    5,243.28x = 7,235.80 × 2,885.44
  4. Step 4: Simplify right side
    5,243.28x = 20,878,466.75
  5. Step 5: Solve for x
    x = 20,878,466.75/5,243.28
  6. Step 6: Final answer
    x = 3,981.95

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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.