Home / 1,684.32-2,521.68-1,519.20

Finding the Fourth Proportional to 1,684.32, 2,521.68 and 1,519.20

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Solution

The fourth proportional to 1,684.32, 2,521.68 and 1,519.20 is: 2,274.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,684.32 : 2,521.68 = 1,519.20 : x
  2. Step 2: Convert to fraction form
    1,684.32/2,521.68 = 1,519.20/x
  3. Step 3: Cross multiply
    1,684.32x = 2,521.68 × 1,519.20
  4. Step 4: Simplify right side
    1,684.32x = 3,830,936.26
  5. Step 5: Solve for x
    x = 3,830,936.26/1,684.32
  6. Step 6: Final answer
    x = 2,274.47

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1.5x scale

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.