Home / 4,159.28-5,739.36-2,390.72

Finding the Fourth Proportional to 4,159.28, 5,739.36 and 2,390.72

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Solution

The fourth proportional to 4,159.28, 5,739.36 and 2,390.72 is: 3,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,159.28 : 5,739.36 = 2,390.72 : x
  2. Step 2: Convert to fraction form
    4,159.28/5,739.36 = 2,390.72/x
  3. Step 3: Cross multiply
    4,159.28x = 5,739.36 × 2,390.72
  4. Step 4: Simplify right side
    4,159.28x = 13,721,202.74
  5. Step 5: Solve for x
    x = 13,721,202.74/4,159.28
  6. Step 6: Final answer
    x = 3,298.94

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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.