Home / 5,243.10-7,235.08-2,885.39

Finding the Fourth Proportional to 5,243.10, 7,235.08 and 2,885.39

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Solution

The fourth proportional to 5,243.10, 7,235.08 and 2,885.39 is: 3,981.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,243.10 : 7,235.08 = 2,885.39 : x
  2. Step 2: Convert to fraction form
    5,243.10/7,235.08 = 2,885.39/x
  3. Step 3: Cross multiply
    5,243.10x = 7,235.08 × 2,885.39
  4. Step 4: Simplify right side
    5,243.10x = 20,876,038.36
  5. Step 5: Solve for x
    x = 20,876,038.36/5,243.10
  6. Step 6: Final answer
    x = 3,981.62

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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.