Home / 4,285.52-6,428.80-1,207.52

Finding the Fourth Proportional to 4,285.52, 6,428.80 and 1,207.52

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Solution

The fourth proportional to 4,285.52, 6,428.80 and 1,207.52 is: 1,811.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.52 : 6,428.80 = 1,207.52 : x
  2. Step 2: Convert to fraction form
    4,285.52/6,428.80 = 1,207.52/x
  3. Step 3: Cross multiply
    4,285.52x = 6,428.80 × 1,207.52
  4. Step 4: Simplify right side
    4,285.52x = 7,762,904.58
  5. Step 5: Solve for x
    x = 7,762,904.58/4,285.52
  6. Step 6: Final answer
    x = 1,811.43

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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.