Home / 7,681.64-11,522.39-2,487.51

Finding the Fourth Proportional to 7,681.64, 11,522.39 and 2,487.51

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Solution

The fourth proportional to 7,681.64, 11,522.39 and 2,487.51 is: 3,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.64 : 11,522.39 = 2,487.51 : x
  2. Step 2: Convert to fraction form
    7,681.64/11,522.39 = 2,487.51/x
  3. Step 3: Cross multiply
    7,681.64x = 11,522.39 × 2,487.51
  4. Step 4: Simplify right side
    7,681.64x = 28,662,047.91
  5. Step 5: Solve for x
    x = 28,662,047.91/7,681.64
  6. Step 6: Final answer
    x = 3,731.24

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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.