Home / 3,764.32-5,643.40-1,422.99

Finding the Fourth Proportional to 3,764.32, 5,643.40 and 1,422.99

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Solution

The fourth proportional to 3,764.32, 5,643.40 and 1,422.99 is: 2,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,764.32 : 5,643.40 = 1,422.99 : x
  2. Step 2: Convert to fraction form
    3,764.32/5,643.40 = 1,422.99/x
  3. Step 3: Cross multiply
    3,764.32x = 5,643.40 × 1,422.99
  4. Step 4: Simplify right side
    3,764.32x = 8,030,501.77
  5. Step 5: Solve for x
    x = 8,030,501.77/3,764.32
  6. Step 6: Final answer
    x = 2,133.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.