Home / 1,578.08-2,176.77-1,262.99

Finding the Fourth Proportional to 1,578.08, 2,176.77 and 1,262.99

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Solution

The fourth proportional to 1,578.08, 2,176.77 and 1,262.99 is: 1,742.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578.08 : 2,176.77 = 1,262.99 : x
  2. Step 2: Convert to fraction form
    1,578.08/2,176.77 = 1,262.99/x
  3. Step 3: Cross multiply
    1,578.08x = 2,176.77 × 1,262.99
  4. Step 4: Simplify right side
    1,578.08x = 2,749,248.92
  5. Step 5: Solve for x
    x = 2,749,248.92/1,578.08
  6. Step 6: Final answer
    x = 1,742.15

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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.