Home / 7,685.76-11,528.64-2,492.16

Finding the Fourth Proportional to 7,685.76, 11,528.64 and 2,492.16

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Solution

The fourth proportional to 7,685.76, 11,528.64 and 2,492.16 is: 3,738.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,685.76 : 11,528.64 = 2,492.16 : x
  2. Step 2: Convert to fraction form
    7,685.76/11,528.64 = 2,492.16/x
  3. Step 3: Cross multiply
    7,685.76x = 11,528.64 × 2,492.16
  4. Step 4: Simplify right side
    7,685.76x = 28,731,215.46
  5. Step 5: Solve for x
    x = 28,731,215.46/7,685.76
  6. Step 6: Final answer
    x = 3,738.24

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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.