Home / 3,037.38-4,185.51-1,987.62

Finding the Fourth Proportional to 3,037.38, 4,185.51 and 1,987.62

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Solution

The fourth proportional to 3,037.38, 4,185.51 and 1,987.62 is: 2,738.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,037.38 : 4,185.51 = 1,987.62 : x
  2. Step 2: Convert to fraction form
    3,037.38/4,185.51 = 1,987.62/x
  3. Step 3: Cross multiply
    3,037.38x = 4,185.51 × 1,987.62
  4. Step 4: Simplify right side
    3,037.38x = 8,319,203.39
  5. Step 5: Solve for x
    x = 8,319,203.39/3,037.38
  6. Step 6: Final answer
    x = 2,738.94

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Half scale
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Double scale
Find fourth proportional to 3,038.38, 4,186.89 and 1,988.62
Similar ratio
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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.