Home / 4,872.80-6,719.27-3,927.59

Finding the Fourth Proportional to 4,872.80, 6,719.27 and 3,927.59

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Solution

The fourth proportional to 4,872.80, 6,719.27 and 3,927.59 is: 5,415.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,872.80 : 6,719.27 = 3,927.59 : x
  2. Step 2: Convert to fraction form
    4,872.80/6,719.27 = 3,927.59/x
  3. Step 3: Cross multiply
    4,872.80x = 6,719.27 × 3,927.59
  4. Step 4: Simplify right side
    4,872.80x = 26,390,534.82
  5. Step 5: Solve for x
    x = 26,390,534.82/4,872.80
  6. Step 6: Final answer
    x = 5,415.89

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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.