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Finding the Fourth Proportional to 988.95, 1,482.27 and 795.17

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Solution

The fourth proportional to 988.95, 1,482.27 and 795.17 is: 1,191.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    988.95 : 1,482.27 = 795.17 : x
  2. Step 2: Convert to fraction form
    988.95/1,482.27 = 795.17/x
  3. Step 3: Cross multiply
    988.95x = 1,482.27 × 795.17
  4. Step 4: Simplify right side
    988.95x = 1,178,649.22
  5. Step 5: Solve for x
    x = 1,178,649.22/988.95
  6. Step 6: Final answer
    x = 1,191.82

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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.