Home / 7,631.74-11,445.76-2,085.11

Finding the Fourth Proportional to 7,631.74, 11,445.76 and 2,085.11

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Solution

The fourth proportional to 7,631.74, 11,445.76 and 2,085.11 is: 3,127.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,631.74 : 11,445.76 = 2,085.11 : x
  2. Step 2: Convert to fraction form
    7,631.74/11,445.76 = 2,085.11/x
  3. Step 3: Cross multiply
    7,631.74x = 11,445.76 × 2,085.11
  4. Step 4: Simplify right side
    7,631.74x = 23,865,668.63
  5. Step 5: Solve for x
    x = 23,865,668.63/7,631.74
  6. Step 6: Final answer
    x = 3,127.16

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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.