Home / 2,274.48-3,139.09-1,488.99

Finding the Fourth Proportional to 2,274.48, 3,139.09 and 1,488.99

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Solution

The fourth proportional to 2,274.48, 3,139.09 and 1,488.99 is: 2,055.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,274.48 : 3,139.09 = 1,488.99 : x
  2. Step 2: Convert to fraction form
    2,274.48/3,139.09 = 1,488.99/x
  3. Step 3: Cross multiply
    2,274.48x = 3,139.09 × 1,488.99
  4. Step 4: Simplify right side
    2,274.48x = 4,674,067.53
  5. Step 5: Solve for x
    x = 4,674,067.53/2,274.48
  6. Step 6: Final answer
    x = 2,055.00

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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.