Home / 1,405.46-2,107.32-584.30

Finding the Fourth Proportional to 1,405.46, 2,107.32 and 584.30

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Solution

The fourth proportional to 1,405.46, 2,107.32 and 584.30 is: 876.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.46 : 2,107.32 = 584.30 : x
  2. Step 2: Convert to fraction form
    1,405.46/2,107.32 = 584.30/x
  3. Step 3: Cross multiply
    1,405.46x = 2,107.32 × 584.30
  4. Step 4: Simplify right side
    1,405.46x = 1,231,307.08
  5. Step 5: Solve for x
    x = 1,231,307.08/1,405.46
  6. Step 6: Final answer
    x = 876.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.