Home / 7,435.20-10,260.65-4,078.09

Finding the Fourth Proportional to 7,435.20, 10,260.65 and 4,078.09

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Solution

The fourth proportional to 7,435.20, 10,260.65 and 4,078.09 is: 5,627.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,435.20 : 10,260.65 = 4,078.09 : x
  2. Step 2: Convert to fraction form
    7,435.20/10,260.65 = 4,078.09/x
  3. Step 3: Cross multiply
    7,435.20x = 10,260.65 × 4,078.09
  4. Step 4: Simplify right side
    7,435.20x = 41,843,838.70
  5. Step 5: Solve for x
    x = 41,843,838.70/7,435.20
  6. Step 6: Final answer
    x = 5,627.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.