Home / 1,887.84-2,811.33-1,776

Finding the Fourth Proportional to 1,887.84, 2,811.33 and 1,776

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Solution

The fourth proportional to 1,887.84, 2,811.33 and 1,776 is: 2,644.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.84 : 2,811.33 = 1,776 : x
  2. Step 2: Convert to fraction form
    1,887.84/2,811.33 = 1,776/x
  3. Step 3: Cross multiply
    1,887.84x = 2,811.33 × 1,776
  4. Step 4: Simplify right side
    1,887.84x = 4,992,922.08
  5. Step 5: Solve for x
    x = 4,992,922.08/1,887.84
  6. Step 6: Final answer
    x = 2,644.78

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.