Home / 2,389.41-3,296.79-1,946.61

Finding the Fourth Proportional to 2,389.41, 3,296.79 and 1,946.61

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Solution

The fourth proportional to 2,389.41, 3,296.79 and 1,946.61 is: 2,685.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,389.41 : 3,296.79 = 1,946.61 : x
  2. Step 2: Convert to fraction form
    2,389.41/3,296.79 = 1,946.61/x
  3. Step 3: Cross multiply
    2,389.41x = 3,296.79 × 1,946.61
  4. Step 4: Simplify right side
    2,389.41x = 6,417,564.38
  5. Step 5: Solve for x
    x = 6,417,564.38/2,389.41
  6. Step 6: Final answer
    x = 2,685.84

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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.