Home / 3,160.08-4,360.23-2,115.18

Finding the Fourth Proportional to 3,160.08, 4,360.23 and 2,115.18

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Solution

The fourth proportional to 3,160.08, 4,360.23 and 2,115.18 is: 2,918.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.08 : 4,360.23 = 2,115.18 : x
  2. Step 2: Convert to fraction form
    3,160.08/4,360.23 = 2,115.18/x
  3. Step 3: Cross multiply
    3,160.08x = 4,360.23 × 2,115.18
  4. Step 4: Simplify right side
    3,160.08x = 9,222,671.29
  5. Step 5: Solve for x
    x = 9,222,671.29/3,160.08
  6. Step 6: Final answer
    x = 2,918.49

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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.