Home / 2,720.84-4,061.51-2,392.80

Finding the Fourth Proportional to 2,720.84, 4,061.51 and 2,392.80

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Solution

The fourth proportional to 2,720.84, 4,061.51 and 2,392.80 is: 3,571.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720.84 : 4,061.51 = 2,392.80 : x
  2. Step 2: Convert to fraction form
    2,720.84/4,061.51 = 2,392.80/x
  3. Step 3: Cross multiply
    2,720.84x = 4,061.51 × 2,392.80
  4. Step 4: Simplify right side
    2,720.84x = 9,718,381.13
  5. Step 5: Solve for x
    x = 9,718,381.13/2,720.84
  6. Step 6: Final answer
    x = 3,571.83

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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.