Home / 4,278.87-5,904.56-2,415.75

Finding the Fourth Proportional to 4,278.87, 5,904.56 and 2,415.75

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Solution

The fourth proportional to 4,278.87, 5,904.56 and 2,415.75 is: 3,333.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.87 : 5,904.56 = 2,415.75 : x
  2. Step 2: Convert to fraction form
    4,278.87/5,904.56 = 2,415.75/x
  3. Step 3: Cross multiply
    4,278.87x = 5,904.56 × 2,415.75
  4. Step 4: Simplify right side
    4,278.87x = 14,263,928.74
  5. Step 5: Solve for x
    x = 14,263,928.74/4,278.87
  6. Step 6: Final answer
    x = 3,333.57

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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.