Home / 3,119.77-4,295.46-2,646.69

Finding the Fourth Proportional to 3,119.77, 4,295.46 and 2,646.69

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Solution

The fourth proportional to 3,119.77, 4,295.46 and 2,646.69 is: 3,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119.77 : 4,295.46 = 2,646.69 : x
  2. Step 2: Convert to fraction form
    3,119.77/4,295.46 = 2,646.69/x
  3. Step 3: Cross multiply
    3,119.77x = 4,295.46 × 2,646.69
  4. Step 4: Simplify right side
    3,119.77x = 11,368,751.03
  5. Step 5: Solve for x
    x = 11,368,751.03/3,119.77
  6. Step 6: Final answer
    x = 3,644.10

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Half scale
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Double 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.