Home / 2,949.35-4,070.42-1,689.99

Finding the Fourth Proportional to 2,949.35, 4,070.42 and 1,689.99

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Solution

The fourth proportional to 2,949.35, 4,070.42 and 1,689.99 is: 2,332.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,949.35 : 4,070.42 = 1,689.99 : x
  2. Step 2: Convert to fraction form
    2,949.35/4,070.42 = 1,689.99/x
  3. Step 3: Cross multiply
    2,949.35x = 4,070.42 × 1,689.99
  4. Step 4: Simplify right side
    2,949.35x = 6,878,960.65
  5. Step 5: Solve for x
    x = 6,878,960.65/2,949.35
  6. Step 6: Final answer
    x = 2,332.37

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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.