Home / 1,405.45-2,107.63-583.30

Finding the Fourth Proportional to 1,405.45, 2,107.63 and 583.30

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Solution

The fourth proportional to 1,405.45, 2,107.63 and 583.30 is: 874.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.45 : 2,107.63 = 583.30 : x
  2. Step 2: Convert to fraction form
    1,405.45/2,107.63 = 583.30/x
  3. Step 3: Cross multiply
    1,405.45x = 2,107.63 × 583.30
  4. Step 4: Simplify right side
    1,405.45x = 1,229,380.58
  5. Step 5: Solve for x
    x = 1,229,380.58/1,405.45
  6. Step 6: Final answer
    x = 874.72

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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.