Home / 3,518.42-5,279.33-1,438.99

Finding the Fourth Proportional to 3,518.42, 5,279.33 and 1,438.99

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Solution

The fourth proportional to 3,518.42, 5,279.33 and 1,438.99 is: 2,159.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,518.42 : 5,279.33 = 1,438.99 : x
  2. Step 2: Convert to fraction form
    3,518.42/5,279.33 = 1,438.99/x
  3. Step 3: Cross multiply
    3,518.42x = 5,279.33 × 1,438.99
  4. Step 4: Simplify right side
    3,518.42x = 7,596,893.48
  5. Step 5: Solve for x
    x = 7,596,893.48/3,518.42
  6. Step 6: Final answer
    x = 2,159.18

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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.