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Finding the Fourth Proportional to 1,695.38, 2,340.02 and 997.16

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Solution

The fourth proportional to 1,695.38, 2,340.02 and 997.16 is: 1,376.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.38 : 2,340.02 = 997.16 : x
  2. Step 2: Convert to fraction form
    1,695.38/2,340.02 = 997.16/x
  3. Step 3: Cross multiply
    1,695.38x = 2,340.02 × 997.16
  4. Step 4: Simplify right side
    1,695.38x = 2,333,365.14
  5. Step 5: Solve for x
    x = 2,333,365.14/1,695.38
  6. Step 6: Final answer
    x = 1,376.31

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1.5x scale

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.