Home / 1,693.18-2,336.49-946.99

Finding the Fourth Proportional to 1,693.18, 2,336.49 and 946.99

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Solution

The fourth proportional to 1,693.18, 2,336.49 and 946.99 is: 1,306.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,693.18 : 2,336.49 = 946.99 : x
  2. Step 2: Convert to fraction form
    1,693.18/2,336.49 = 946.99/x
  3. Step 3: Cross multiply
    1,693.18x = 2,336.49 × 946.99
  4. Step 4: Simplify right side
    1,693.18x = 2,212,620.98
  5. Step 5: Solve for x
    x = 2,212,620.98/1,693.18
  6. Step 6: Final answer
    x = 1,306.79

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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.