Home / 4,427.15-6,638.43-1,306.76

Finding the Fourth Proportional to 4,427.15, 6,638.43 and 1,306.76

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Solution

The fourth proportional to 4,427.15, 6,638.43 and 1,306.76 is: 1,959.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,427.15 : 6,638.43 = 1,306.76 : x
  2. Step 2: Convert to fraction form
    4,427.15/6,638.43 = 1,306.76/x
  3. Step 3: Cross multiply
    4,427.15x = 6,638.43 × 1,306.76
  4. Step 4: Simplify right side
    4,427.15x = 8,674,801.59
  5. Step 5: Solve for x
    x = 8,674,801.59/4,427.15
  6. Step 6: Final answer
    x = 1,959.46

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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.