Home / 4,240.35-6,360.80-1,320.57

Finding the Fourth Proportional to 4,240.35, 6,360.80 and 1,320.57

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Solution

The fourth proportional to 4,240.35, 6,360.80 and 1,320.57 is: 1,980.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,240.35 : 6,360.80 = 1,320.57 : x
  2. Step 2: Convert to fraction form
    4,240.35/6,360.80 = 1,320.57/x
  3. Step 3: Cross multiply
    4,240.35x = 6,360.80 × 1,320.57
  4. Step 4: Simplify right side
    4,240.35x = 8,399,875.05
  5. Step 5: Solve for x
    x = 8,399,875.05/4,240.35
  6. Step 6: Final answer
    x = 1,980.94

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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.