Home / 3,146.66-4,342.30-1,730.35

Finding the Fourth Proportional to 3,146.66, 4,342.30 and 1,730.35

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Solution

The fourth proportional to 3,146.66, 4,342.30 and 1,730.35 is: 2,387.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.66 : 4,342.30 = 1,730.35 : x
  2. Step 2: Convert to fraction form
    3,146.66/4,342.30 = 1,730.35/x
  3. Step 3: Cross multiply
    3,146.66x = 4,342.30 × 1,730.35
  4. Step 4: Simplify right side
    3,146.66x = 7,513,675.48
  5. Step 5: Solve for x
    x = 7,513,675.48/3,146.66
  6. Step 6: Final answer
    x = 2,387.83

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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.