Home / 1,880.29-2,808.91-1,355.82

Finding the Fourth Proportional to 1,880.29, 2,808.91 and 1,355.82

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Solution

The fourth proportional to 1,880.29, 2,808.91 and 1,355.82 is: 2,025.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,880.29 : 2,808.91 = 1,355.82 : x
  2. Step 2: Convert to fraction form
    1,880.29/2,808.91 = 1,355.82/x
  3. Step 3: Cross multiply
    1,880.29x = 2,808.91 × 1,355.82
  4. Step 4: Simplify right side
    1,880.29x = 3,808,376.36
  5. Step 5: Solve for x
    x = 3,808,376.36/1,880.29
  6. Step 6: Final answer
    x = 2,025.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.