Home / 1,520.98-2,285.75-904.79

Finding the Fourth Proportional to 1,520.98, 2,285.75 and 904.79

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Solution

The fourth proportional to 1,520.98, 2,285.75 and 904.79 is: 1,359.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,520.98 : 2,285.75 = 904.79 : x
  2. Step 2: Convert to fraction form
    1,520.98/2,285.75 = 904.79/x
  3. Step 3: Cross multiply
    1,520.98x = 2,285.75 × 904.79
  4. Step 4: Simplify right side
    1,520.98x = 2,068,124.93
  5. Step 5: Solve for x
    x = 2,068,124.93/1,520.98
  6. Step 6: Final answer
    x = 1,359.73

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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.