Home / 1,919.28-2,649.04-1,548.72

Finding the Fourth Proportional to 1,919.28, 2,649.04 and 1,548.72

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Solution

The fourth proportional to 1,919.28, 2,649.04 and 1,548.72 is: 2,137.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,919.28 : 2,649.04 = 1,548.72 : x
  2. Step 2: Convert to fraction form
    1,919.28/2,649.04 = 1,548.72/x
  3. Step 3: Cross multiply
    1,919.28x = 2,649.04 × 1,548.72
  4. Step 4: Simplify right side
    1,919.28x = 4,102,621.23
  5. Step 5: Solve for x
    x = 4,102,621.23/1,919.28
  6. Step 6: Final answer
    x = 2,137.58

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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.