Home / 7,378.19-11,063.18-2,990.52

Finding the Fourth Proportional to 7,378.19, 11,063.18 and 2,990.52

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Solution

The fourth proportional to 7,378.19, 11,063.18 and 2,990.52 is: 4,484.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,378.19 : 11,063.18 = 2,990.52 : x
  2. Step 2: Convert to fraction form
    7,378.19/11,063.18 = 2,990.52/x
  3. Step 3: Cross multiply
    7,378.19x = 11,063.18 × 2,990.52
  4. Step 4: Simplify right side
    7,378.19x = 33,084,668.53
  5. Step 5: Solve for x
    x = 33,084,668.53/7,378.19
  6. Step 6: Final answer
    x = 4,484.12

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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.