Home / 4,386.56-6,555.58-3,929.72

Finding the Fourth Proportional to 4,386.56, 6,555.58 and 3,929.72

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Solution

The fourth proportional to 4,386.56, 6,555.58 and 3,929.72 is: 5,872.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,386.56 : 6,555.58 = 3,929.72 : x
  2. Step 2: Convert to fraction form
    4,386.56/6,555.58 = 3,929.72/x
  3. Step 3: Cross multiply
    4,386.56x = 6,555.58 × 3,929.72
  4. Step 4: Simplify right side
    4,386.56x = 25,761,593.84
  5. Step 5: Solve for x
    x = 25,761,593.84/4,386.56
  6. Step 6: Final answer
    x = 5,872.85

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.