Home / 3,967.40-5,475.63-2,288.48

Finding the Fourth Proportional to 3,967.40, 5,475.63 and 2,288.48

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Solution

The fourth proportional to 3,967.40, 5,475.63 and 2,288.48 is: 3,158.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,967.40 : 5,475.63 = 2,288.48 : x
  2. Step 2: Convert to fraction form
    3,967.40/5,475.63 = 2,288.48/x
  3. Step 3: Cross multiply
    3,967.40x = 5,475.63 × 2,288.48
  4. Step 4: Simplify right side
    3,967.40x = 12,530,869.74
  5. Step 5: Solve for x
    x = 12,530,869.74/3,967.40
  6. Step 6: Final answer
    x = 3,158.46

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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.