Home / 2,887.28-3,984.44-1,560.98

Finding the Fourth Proportional to 2,887.28, 3,984.44 and 1,560.98

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Solution

The fourth proportional to 2,887.28, 3,984.44 and 1,560.98 is: 2,154.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.28 : 3,984.44 = 1,560.98 : x
  2. Step 2: Convert to fraction form
    2,887.28/3,984.44 = 1,560.98/x
  3. Step 3: Cross multiply
    2,887.28x = 3,984.44 × 1,560.98
  4. Step 4: Simplify right side
    2,887.28x = 6,219,631.15
  5. Step 5: Solve for x
    x = 6,219,631.15/2,887.28
  6. Step 6: Final answer
    x = 2,154.15

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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.