Home / 2,939.09-4,392.36-2,391.93

Finding the Fourth Proportional to 2,939.09, 4,392.36 and 2,391.93

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Solution

The fourth proportional to 2,939.09, 4,392.36 and 2,391.93 is: 3,574.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,939.09 : 4,392.36 = 2,391.93 : x
  2. Step 2: Convert to fraction form
    2,939.09/4,392.36 = 2,391.93/x
  3. Step 3: Cross multiply
    2,939.09x = 4,392.36 × 2,391.93
  4. Step 4: Simplify right side
    2,939.09x = 10,506,217.65
  5. Step 5: Solve for x
    x = 10,506,217.65/2,939.09
  6. Step 6: Final answer
    x = 3,574.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.