Home / 3,951.06-5,455.20-2,459.28

Finding the Fourth Proportional to 3,951.06, 5,455.20 and 2,459.28

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Solution

The fourth proportional to 3,951.06, 5,455.20 and 2,459.28 is: 3,395.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,951.06 : 5,455.20 = 2,459.28 : x
  2. Step 2: Convert to fraction form
    3,951.06/5,455.20 = 2,459.28/x
  3. Step 3: Cross multiply
    3,951.06x = 5,455.20 × 2,459.28
  4. Step 4: Simplify right side
    3,951.06x = 13,415,864.26
  5. Step 5: Solve for x
    x = 13,415,864.26/3,951.06
  6. Step 6: Final answer
    x = 3,395.51

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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.