Home / 1,812.06-2,716.76-578.77

Finding the Fourth Proportional to 1,812.06, 2,716.76 and 578.77

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Solution

The fourth proportional to 1,812.06, 2,716.76 and 578.77 is: 867.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,812.06 : 2,716.76 = 578.77 : x
  2. Step 2: Convert to fraction form
    1,812.06/2,716.76 = 578.77/x
  3. Step 3: Cross multiply
    1,812.06x = 2,716.76 × 578.77
  4. Step 4: Simplify right side
    1,812.06x = 1,572,373.84
  5. Step 5: Solve for x
    x = 1,572,373.84/1,812.06
  6. Step 6: Final answer
    x = 867.73

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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.