Home / 1,865.28-2,798.43-1,661.26

Finding the Fourth Proportional to 1,865.28, 2,798.43 and 1,661.26

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Solution

The fourth proportional to 1,865.28, 2,798.43 and 1,661.26 is: 2,492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,865.28 : 2,798.43 = 1,661.26 : x
  2. Step 2: Convert to fraction form
    1,865.28/2,798.43 = 1,661.26/x
  3. Step 3: Cross multiply
    1,865.28x = 2,798.43 × 1,661.26
  4. Step 4: Simplify right side
    1,865.28x = 4,648,919.82
  5. Step 5: Solve for x
    x = 4,648,919.82/1,865.28
  6. Step 6: Final answer
    x = 2,492.34

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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.