Home / 3,501.38-5,252.57-1,280.31

Finding the Fourth Proportional to 3,501.38, 5,252.57 and 1,280.31

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Solution

The fourth proportional to 3,501.38, 5,252.57 and 1,280.31 is: 1,920.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,501.38 : 5,252.57 = 1,280.31 : x
  2. Step 2: Convert to fraction form
    3,501.38/5,252.57 = 1,280.31/x
  3. Step 3: Cross multiply
    3,501.38x = 5,252.57 × 1,280.31
  4. Step 4: Simplify right side
    3,501.38x = 6,724,911.50
  5. Step 5: Solve for x
    x = 6,724,911.50/3,501.38
  6. Step 6: Final answer
    x = 1,920.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.