Home / 1,576.12-2,365.62-1,209.72

Finding the Fourth Proportional to 1,576.12, 2,365.62 and 1,209.72

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Solution

The fourth proportional to 1,576.12, 2,365.62 and 1,209.72 is: 1,815.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,576.12 : 2,365.62 = 1,209.72 : x
  2. Step 2: Convert to fraction form
    1,576.12/2,365.62 = 1,209.72/x
  3. Step 3: Cross multiply
    1,576.12x = 2,365.62 × 1,209.72
  4. Step 4: Simplify right side
    1,576.12x = 2,861,737.83
  5. Step 5: Solve for x
    x = 2,861,737.83/1,576.12
  6. Step 6: Final answer
    x = 1,815.69

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1.5x scale

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.