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Finding the Fourth Proportional to 1,094.49, 1,510.97 and 722.08

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Solution

The fourth proportional to 1,094.49, 1,510.97 and 722.08 is: 996.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,094.49 : 1,510.97 = 722.08 : x
  2. Step 2: Convert to fraction form
    1,094.49/1,510.97 = 722.08/x
  3. Step 3: Cross multiply
    1,094.49x = 1,510.97 × 722.08
  4. Step 4: Simplify right side
    1,094.49x = 1,091,041.22
  5. Step 5: Solve for x
    x = 1,091,041.22/1,094.49
  6. Step 6: Final answer
    x = 996.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.