Home / 2,387.09-3,295.08-1,392.68

Finding the Fourth Proportional to 2,387.09, 3,295.08 and 1,392.68

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Solution

The fourth proportional to 2,387.09, 3,295.08 and 1,392.68 is: 1,922.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,387.09 : 3,295.08 = 1,392.68 : x
  2. Step 2: Convert to fraction form
    2,387.09/3,295.08 = 1,392.68/x
  3. Step 3: Cross multiply
    2,387.09x = 3,295.08 × 1,392.68
  4. Step 4: Simplify right side
    2,387.09x = 4,588,992.01
  5. Step 5: Solve for x
    x = 4,588,992.01/2,387.09
  6. Step 6: Final answer
    x = 1,922.42

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1.5x scale

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.