Home / 4,278.06-6,415.38-2,719.08

Finding the Fourth Proportional to 4,278.06, 6,415.38 and 2,719.08

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Solution

The fourth proportional to 4,278.06, 6,415.38 and 2,719.08 is: 4,077.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,278.06 : 6,415.38 = 2,719.08 : x
  2. Step 2: Convert to fraction form
    4,278.06/6,415.38 = 2,719.08/x
  3. Step 3: Cross multiply
    4,278.06x = 6,415.38 × 2,719.08
  4. Step 4: Simplify right side
    4,278.06x = 17,443,931.45
  5. Step 5: Solve for x
    x = 17,443,931.45/4,278.06
  6. Step 6: Final answer
    x = 4,077.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.