Home / 1,285.07-1,926.85-581.99

Finding the Fourth Proportional to 1,285.07, 1,926.85 and 581.99

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Solution

The fourth proportional to 1,285.07, 1,926.85 and 581.99 is: 872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285.07 : 1,926.85 = 581.99 : x
  2. Step 2: Convert to fraction form
    1,285.07/1,926.85 = 581.99/x
  3. Step 3: Cross multiply
    1,285.07x = 1,926.85 × 581.99
  4. Step 4: Simplify right side
    1,285.07x = 1,121,407.43
  5. Step 5: Solve for x
    x = 1,121,407.43/1,285.07
  6. Step 6: Final answer
    x = 872.64

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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.