Home / 4,629.72-6,387.75-2,639.55

Finding the Fourth Proportional to 4,629.72, 6,387.75 and 2,639.55

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Solution

The fourth proportional to 4,629.72, 6,387.75 and 2,639.55 is: 3,641.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,629.72 : 6,387.75 = 2,639.55 : x
  2. Step 2: Convert to fraction form
    4,629.72/6,387.75 = 2,639.55/x
  3. Step 3: Cross multiply
    4,629.72x = 6,387.75 × 2,639.55
  4. Step 4: Simplify right side
    4,629.72x = 16,860,785.51
  5. Step 5: Solve for x
    x = 16,860,785.51/4,629.72
  6. Step 6: Final answer
    x = 3,641.86

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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.