Home / 2,943.96-4,062.51-1,685.13

Finding the Fourth Proportional to 2,943.96, 4,062.51 and 1,685.13

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Solution

The fourth proportional to 2,943.96, 4,062.51 and 1,685.13 is: 2,325.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,943.96 : 4,062.51 = 1,685.13 : x
  2. Step 2: Convert to fraction form
    2,943.96/4,062.51 = 1,685.13/x
  3. Step 3: Cross multiply
    2,943.96x = 4,062.51 × 1,685.13
  4. Step 4: Simplify right side
    2,943.96x = 6,845,857.48
  5. Step 5: Solve for x
    x = 6,845,857.48/2,943.96
  6. Step 6: Final answer
    x = 2,325.39

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Double scale
Find fourth proportional to 2,944.96, 4,063.89 and 1,686.13
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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.