Home / 3,832.40-5,288.64-2,415.80

Finding the Fourth Proportional to 3,832.40, 5,288.64 and 2,415.80

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Solution

The fourth proportional to 3,832.40, 5,288.64 and 2,415.80 is: 3,333.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,832.40 : 5,288.64 = 2,415.80 : x
  2. Step 2: Convert to fraction form
    3,832.40/5,288.64 = 2,415.80/x
  3. Step 3: Cross multiply
    3,832.40x = 5,288.64 × 2,415.80
  4. Step 4: Simplify right side
    3,832.40x = 12,776,296.51
  5. Step 5: Solve for x
    x = 12,776,296.51/3,832.40
  6. Step 6: Final answer
    x = 3,333.76

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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.