Home / 2,887.17-4,330.80-1,155.75

Finding the Fourth Proportional to 2,887.17, 4,330.80 and 1,155.75

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Solution

The fourth proportional to 2,887.17, 4,330.80 and 1,155.75 is: 1,733.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,887.17 : 4,330.80 = 1,155.75 : x
  2. Step 2: Convert to fraction form
    2,887.17/4,330.80 = 1,155.75/x
  3. Step 3: Cross multiply
    2,887.17x = 4,330.80 × 1,155.75
  4. Step 4: Simplify right side
    2,887.17x = 5,005,322.10
  5. Step 5: Solve for x
    x = 5,005,322.10/2,887.17
  6. Step 6: Final answer
    x = 1,733.64

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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.