Home / 1,586.07-2,188.89-887.49

Finding the Fourth Proportional to 1,586.07, 2,188.89 and 887.49

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Solution

The fourth proportional to 1,586.07, 2,188.89 and 887.49 is: 1,224.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586.07 : 2,188.89 = 887.49 : x
  2. Step 2: Convert to fraction form
    1,586.07/2,188.89 = 887.49/x
  3. Step 3: Cross multiply
    1,586.07x = 2,188.89 × 887.49
  4. Step 4: Simplify right side
    1,586.07x = 1,942,617.99
  5. Step 5: Solve for x
    x = 1,942,617.99/1,586.07
  6. Step 6: Final answer
    x = 1,224.80

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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.