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Finding the Fourth Proportional to 1,747.17, 2,617.62 and 913.17

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Solution

The fourth proportional to 1,747.17, 2,617.62 and 913.17 is: 1,368.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,747.17 : 2,617.62 = 913.17 : x
  2. Step 2: Convert to fraction form
    1,747.17/2,617.62 = 913.17/x
  3. Step 3: Cross multiply
    1,747.17x = 2,617.62 × 913.17
  4. Step 4: Simplify right side
    1,747.17x = 2,390,338.45
  5. Step 5: Solve for x
    x = 2,390,338.45/1,747.17
  6. Step 6: Final answer
    x = 1,368.12

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1.5x scale

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.