Home / 5,518.65-7,615.98-3,529.02

Finding the Fourth Proportional to 5,518.65, 7,615.98 and 3,529.02

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Solution

The fourth proportional to 5,518.65, 7,615.98 and 3,529.02 is: 4,870.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,518.65 : 7,615.98 = 3,529.02 : x
  2. Step 2: Convert to fraction form
    5,518.65/7,615.98 = 3,529.02/x
  3. Step 3: Cross multiply
    5,518.65x = 7,615.98 × 3,529.02
  4. Step 4: Simplify right side
    5,518.65x = 26,876,945.74
  5. Step 5: Solve for x
    x = 26,876,945.74/5,518.65
  6. Step 6: Final answer
    x = 4,870.20

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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.