Home / 3,083.04-4,254.64-1,685.78

Finding the Fourth Proportional to 3,083.04, 4,254.64 and 1,685.78

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Solution

The fourth proportional to 3,083.04, 4,254.64 and 1,685.78 is: 2,326.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,083.04 : 4,254.64 = 1,685.78 : x
  2. Step 2: Convert to fraction form
    3,083.04/4,254.64 = 1,685.78/x
  3. Step 3: Cross multiply
    3,083.04x = 4,254.64 × 1,685.78
  4. Step 4: Simplify right side
    3,083.04x = 7,172,387.02
  5. Step 5: Solve for x
    x = 7,172,387.02/3,083.04
  6. Step 6: Final answer
    x = 2,326.40

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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.