Home / 4,240.56-6,360.75-1,120.75

Finding the Fourth Proportional to 4,240.56, 6,360.75 and 1,120.75

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Solution

The fourth proportional to 4,240.56, 6,360.75 and 1,120.75 is: 1,681.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.56 : 6,360.75 = 1,120.75 : x
  2. Step 2: Convert to fraction form
    4,240.56/6,360.75 = 1,120.75/x
  3. Step 3: Cross multiply
    4,240.56x = 6,360.75 × 1,120.75
  4. Step 4: Simplify right side
    4,240.56x = 7,128,826.88
  5. Step 5: Solve for x
    x = 7,128,826.88/4,240.56
  6. Step 6: Final answer
    x = 1,681.11

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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.