Home / 1,582.94-2,177.52-1,287.56

Finding the Fourth Proportional to 1,582.94, 2,177.52 and 1,287.56

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Solution

The fourth proportional to 1,582.94, 2,177.52 and 1,287.56 is: 1,771.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.94 : 2,177.52 = 1,287.56 : x
  2. Step 2: Convert to fraction form
    1,582.94/2,177.52 = 1,287.56/x
  3. Step 3: Cross multiply
    1,582.94x = 2,177.52 × 1,287.56
  4. Step 4: Simplify right side
    1,582.94x = 2,803,687.65
  5. Step 5: Solve for x
    x = 2,803,687.65/1,582.94
  6. Step 6: Final answer
    x = 1,771.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.