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Finding the Fourth Proportional to 1,346.93, 2,017.15 and 912.77

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Solution

The fourth proportional to 1,346.93, 2,017.15 and 912.77 is: 1,366.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346.93 : 2,017.15 = 912.77 : x
  2. Step 2: Convert to fraction form
    1,346.93/2,017.15 = 912.77/x
  3. Step 3: Cross multiply
    1,346.93x = 2,017.15 × 912.77
  4. Step 4: Simplify right side
    1,346.93x = 1,841,181.64
  5. Step 5: Solve for x
    x = 1,841,181.64/1,346.93
  6. Step 6: Final answer
    x = 1,366.95

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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.