Home / 3,088.12-4,259.82-1,908.28

Finding the Fourth Proportional to 3,088.12, 4,259.82 and 1,908.28

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Solution

The fourth proportional to 3,088.12, 4,259.82 and 1,908.28 is: 2,632.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,088.12 : 4,259.82 = 1,908.28 : x
  2. Step 2: Convert to fraction form
    3,088.12/4,259.82 = 1,908.28/x
  3. Step 3: Cross multiply
    3,088.12x = 4,259.82 × 1,908.28
  4. Step 4: Simplify right side
    3,088.12x = 8,128,929.31
  5. Step 5: Solve for x
    x = 8,128,929.31/3,088.12
  6. Step 6: Final answer
    x = 2,632.32

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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.