Home / 3,039.84-4,191.51-2,478.56

Finding the Fourth Proportional to 3,039.84, 4,191.51 and 2,478.56

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Solution

The fourth proportional to 3,039.84, 4,191.51 and 2,478.56 is: 3,417.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,039.84 : 4,191.51 = 2,478.56 : x
  2. Step 2: Convert to fraction form
    3,039.84/4,191.51 = 2,478.56/x
  3. Step 3: Cross multiply
    3,039.84x = 4,191.51 × 2,478.56
  4. Step 4: Simplify right side
    3,039.84x = 10,388,909.03
  5. Step 5: Solve for x
    x = 10,388,909.03/3,039.84
  6. Step 6: Final answer
    x = 3,417.58

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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.