Home / 4,200.72-5,801.40-2,629.68

Finding the Fourth Proportional to 4,200.72, 5,801.40 and 2,629.68

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Solution

The fourth proportional to 4,200.72, 5,801.40 and 2,629.68 is: 3,631.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.72 : 5,801.40 = 2,629.68 : x
  2. Step 2: Convert to fraction form
    4,200.72/5,801.40 = 2,629.68/x
  3. Step 3: Cross multiply
    4,200.72x = 5,801.40 × 2,629.68
  4. Step 4: Simplify right side
    4,200.72x = 15,255,825.55
  5. Step 5: Solve for x
    x = 15,255,825.55/4,200.72
  6. Step 6: Final answer
    x = 3,631.72

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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.