Home / 4,223.12-6,335.40-1,913.36

Finding the Fourth Proportional to 4,223.12, 6,335.40 and 1,913.36

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Solution

The fourth proportional to 4,223.12, 6,335.40 and 1,913.36 is: 2,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,223.12 : 6,335.40 = 1,913.36 : x
  2. Step 2: Convert to fraction form
    4,223.12/6,335.40 = 1,913.36/x
  3. Step 3: Cross multiply
    4,223.12x = 6,335.40 × 1,913.36
  4. Step 4: Simplify right side
    4,223.12x = 12,121,900.94
  5. Step 5: Solve for x
    x = 12,121,900.94/4,223.12
  6. Step 6: Final answer
    x = 2,870.37

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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.