Home / 2,804.28-3,869.91-1,685.23

Finding the Fourth Proportional to 2,804.28, 3,869.91 and 1,685.23

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Solution

The fourth proportional to 2,804.28, 3,869.91 and 1,685.23 is: 2,325.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,804.28 : 3,869.91 = 1,685.23 : x
  2. Step 2: Convert to fraction form
    2,804.28/3,869.91 = 1,685.23/x
  3. Step 3: Cross multiply
    2,804.28x = 3,869.91 × 1,685.23
  4. Step 4: Simplify right side
    2,804.28x = 6,521,680.00
  5. Step 5: Solve for x
    x = 6,521,680.00/2,804.28
  6. Step 6: Final answer
    x = 2,325.62

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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.