Home / 7,685.90-11,525.06-2,491.10

Finding the Fourth Proportional to 7,685.90, 11,525.06 and 2,491.10

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Solution

The fourth proportional to 7,685.90, 11,525.06 and 2,491.10 is: 3,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.90 : 11,525.06 = 2,491.10 : x
  2. Step 2: Convert to fraction form
    7,685.90/11,525.06 = 2,491.10/x
  3. Step 3: Cross multiply
    7,685.90x = 11,525.06 × 2,491.10
  4. Step 4: Simplify right side
    7,685.90x = 28,710,076.97
  5. Step 5: Solve for x
    x = 28,710,076.97/7,685.90
  6. Step 6: Final answer
    x = 3,735.42

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1.5x scale

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.