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Finding the Fourth Proportional to 1,737.99, 2,398.40 and 992.18

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Solution

The fourth proportional to 1,737.99, 2,398.40 and 992.18 is: 1,369.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,737.99 : 2,398.40 = 992.18 : x
  2. Step 2: Convert to fraction form
    1,737.99/2,398.40 = 992.18/x
  3. Step 3: Cross multiply
    1,737.99x = 2,398.40 × 992.18
  4. Step 4: Simplify right side
    1,737.99x = 2,379,639.55
  5. Step 5: Solve for x
    x = 2,379,639.55/1,737.99
  6. Step 6: Final answer
    x = 1,369.19

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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.