Home / 5,379.76-7,424.88-3,285.08

Finding the Fourth Proportional to 5,379.76, 7,424.88 and 3,285.08

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Solution

The fourth proportional to 5,379.76, 7,424.88 and 3,285.08 is: 4,533.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,379.76 : 7,424.88 = 3,285.08 : x
  2. Step 2: Convert to fraction form
    5,379.76/7,424.88 = 3,285.08/x
  3. Step 3: Cross multiply
    5,379.76x = 7,424.88 × 3,285.08
  4. Step 4: Simplify right side
    5,379.76x = 24,391,324.79
  5. Step 5: Solve for x
    x = 24,391,324.79/5,379.76
  6. Step 6: Final answer
    x = 4,533.91

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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.