Home / 5,219.91-7,830.33-1,324.32

Finding the Fourth Proportional to 5,219.91, 7,830.33 and 1,324.32

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Solution

The fourth proportional to 5,219.91, 7,830.33 and 1,324.32 is: 1,986.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,219.91 : 7,830.33 = 1,324.32 : x
  2. Step 2: Convert to fraction form
    5,219.91/7,830.33 = 1,324.32/x
  3. Step 3: Cross multiply
    5,219.91x = 7,830.33 × 1,324.32
  4. Step 4: Simplify right side
    5,219.91x = 10,369,862.63
  5. Step 5: Solve for x
    x = 10,369,862.63/5,219.91
  6. Step 6: Final answer
    x = 1,986.60

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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.