Home / 4,200.72-5,796.95-2,312.25

Finding the Fourth Proportional to 4,200.72, 5,796.95 and 2,312.25

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Solution

The fourth proportional to 4,200.72, 5,796.95 and 2,312.25 is: 3,190.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.72 : 5,796.95 = 2,312.25 : x
  2. Step 2: Convert to fraction form
    4,200.72/5,796.95 = 2,312.25/x
  3. Step 3: Cross multiply
    4,200.72x = 5,796.95 × 2,312.25
  4. Step 4: Simplify right side
    4,200.72x = 13,403,986.08
  5. Step 5: Solve for x
    x = 13,403,986.08/4,200.72
  6. Step 6: Final answer
    x = 3,190.88

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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.