Home / 7,461.79-11,192.62-2,781.64

Finding the Fourth Proportional to 7,461.79, 11,192.62 and 2,781.64

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Solution

The fourth proportional to 7,461.79, 11,192.62 and 2,781.64 is: 4,172.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,461.79 : 11,192.62 = 2,781.64 : x
  2. Step 2: Convert to fraction form
    7,461.79/11,192.62 = 2,781.64/x
  3. Step 3: Cross multiply
    7,461.79x = 11,192.62 × 2,781.64
  4. Step 4: Simplify right side
    7,461.79x = 31,133,839.50
  5. Step 5: Solve for x
    x = 31,133,839.50/7,461.79
  6. Step 6: Final answer
    x = 4,172.44

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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.