Home / 3,395.76-4,685.36-2,278.77

Finding the Fourth Proportional to 3,395.76, 4,685.36 and 2,278.77

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Solution

The fourth proportional to 3,395.76, 4,685.36 and 2,278.77 is: 3,144.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.76 : 4,685.36 = 2,278.77 : x
  2. Step 2: Convert to fraction form
    3,395.76/4,685.36 = 2,278.77/x
  3. Step 3: Cross multiply
    3,395.76x = 4,685.36 × 2,278.77
  4. Step 4: Simplify right side
    3,395.76x = 10,676,846.41
  5. Step 5: Solve for x
    x = 10,676,846.41/3,395.76
  6. Step 6: Final answer
    x = 3,144.17

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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.