Home / 2,868.45-4,302.72-1,887.51

Finding the Fourth Proportional to 2,868.45, 4,302.72 and 1,887.51

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Solution

The fourth proportional to 2,868.45, 4,302.72 and 1,887.51 is: 2,831.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,868.45 : 4,302.72 = 1,887.51 : x
  2. Step 2: Convert to fraction form
    2,868.45/4,302.72 = 1,887.51/x
  3. Step 3: Cross multiply
    2,868.45x = 4,302.72 × 1,887.51
  4. Step 4: Simplify right side
    2,868.45x = 8,121,427.03
  5. Step 5: Solve for x
    x = 8,121,427.03/2,868.45
  6. Step 6: Final answer
    x = 2,831.29

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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.