Home / 1,465.31-2,195.06-770.94

Finding the Fourth Proportional to 1,465.31, 2,195.06 and 770.94

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Solution

The fourth proportional to 1,465.31, 2,195.06 and 770.94 is: 1,154.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,465.31 : 2,195.06 = 770.94 : x
  2. Step 2: Convert to fraction form
    1,465.31/2,195.06 = 770.94/x
  3. Step 3: Cross multiply
    1,465.31x = 2,195.06 × 770.94
  4. Step 4: Simplify right side
    1,465.31x = 1,692,255.70
  5. Step 5: Solve for x
    x = 1,692,255.70/1,465.31
  6. Step 6: Final answer
    x = 1,154.88

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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.