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Finding the Fourth Proportional to 1,095.20, 1,511.20 and 652.94

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Solution

The fourth proportional to 1,095.20, 1,511.20 and 652.94 is: 900.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,095.20 : 1,511.20 = 652.94 : x
  2. Step 2: Convert to fraction form
    1,095.20/1,511.20 = 652.94/x
  3. Step 3: Cross multiply
    1,095.20x = 1,511.20 × 652.94
  4. Step 4: Simplify right side
    1,095.20x = 986,725.07
  5. Step 5: Solve for x
    x = 986,725.07/1,095.20
  6. Step 6: Final answer
    x = 900.95

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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.