Home / 3,840.24-5,290.20-2,659.32

Finding the Fourth Proportional to 3,840.24, 5,290.20 and 2,659.32

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Solution

The fourth proportional to 3,840.24, 5,290.20 and 2,659.32 is: 3,663.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,840.24 : 5,290.20 = 2,659.32 : x
  2. Step 2: Convert to fraction form
    3,840.24/5,290.20 = 2,659.32/x
  3. Step 3: Cross multiply
    3,840.24x = 5,290.20 × 2,659.32
  4. Step 4: Simplify right side
    3,840.24x = 14,068,334.66
  5. Step 5: Solve for x
    x = 14,068,334.66/3,840.24
  6. Step 6: Final answer
    x = 3,663.40

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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.