Home / 2,209.07-3,048.45-1,423.57

Finding the Fourth Proportional to 2,209.07, 3,048.45 and 1,423.57

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Solution

The fourth proportional to 2,209.07, 3,048.45 and 1,423.57 is: 1,964.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,209.07 : 3,048.45 = 1,423.57 : x
  2. Step 2: Convert to fraction form
    2,209.07/3,048.45 = 1,423.57/x
  3. Step 3: Cross multiply
    2,209.07x = 3,048.45 × 1,423.57
  4. Step 4: Simplify right side
    2,209.07x = 4,339,669.01
  5. Step 5: Solve for x
    x = 4,339,669.01/2,209.07
  6. Step 6: Final answer
    x = 1,964.48

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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.