Home / 4,012.38-5,537.85-2,688.39

Finding the Fourth Proportional to 4,012.38, 5,537.85 and 2,688.39

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Solution

The fourth proportional to 4,012.38, 5,537.85 and 2,688.39 is: 3,710.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,012.38 : 5,537.85 = 2,688.39 : x
  2. Step 2: Convert to fraction form
    4,012.38/5,537.85 = 2,688.39/x
  3. Step 3: Cross multiply
    4,012.38x = 5,537.85 × 2,688.39
  4. Step 4: Simplify right side
    4,012.38x = 14,887,890.18
  5. Step 5: Solve for x
    x = 14,887,890.18/4,012.38
  6. Step 6: Final answer
    x = 3,710.49

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Half scale
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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.