Home / 3,146.65-4,342.11-1,730.36

Finding the Fourth Proportional to 3,146.65, 4,342.11 and 1,730.36

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Solution

The fourth proportional to 3,146.65, 4,342.11 and 1,730.36 is: 2,387.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,146.65 : 4,342.11 = 1,730.36 : x
  2. Step 2: Convert to fraction form
    3,146.65/4,342.11 = 1,730.36/x
  3. Step 3: Cross multiply
    3,146.65x = 4,342.11 × 1,730.36
  4. Step 4: Simplify right side
    3,146.65x = 7,513,417.83
  5. Step 5: Solve for x
    x = 7,513,417.83/3,146.65
  6. Step 6: Final answer
    x = 2,387.75

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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.