Home / 1,887.36-2,826.18-1,615.20

Finding the Fourth Proportional to 1,887.36, 2,826.18 and 1,615.20

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Solution

The fourth proportional to 1,887.36, 2,826.18 and 1,615.20 is: 2,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,887.36 : 2,826.18 = 1,615.20 : x
  2. Step 2: Convert to fraction form
    1,887.36/2,826.18 = 1,615.20/x
  3. Step 3: Cross multiply
    1,887.36x = 2,826.18 × 1,615.20
  4. Step 4: Simplify right side
    1,887.36x = 4,564,845.94
  5. Step 5: Solve for x
    x = 4,564,845.94/1,887.36
  6. Step 6: Final answer
    x = 2,418.64

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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.