Home / 4,859.90-7,290.20-1,397.42

Finding the Fourth Proportional to 4,859.90, 7,290.20 and 1,397.42

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Solution

The fourth proportional to 4,859.90, 7,290.20 and 1,397.42 is: 2,096.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,859.90 : 7,290.20 = 1,397.42 : x
  2. Step 2: Convert to fraction form
    4,859.90/7,290.20 = 1,397.42/x
  3. Step 3: Cross multiply
    4,859.90x = 7,290.20 × 1,397.42
  4. Step 4: Simplify right side
    4,859.90x = 10,187,438.33
  5. Step 5: Solve for x
    x = 10,187,438.33/4,859.90
  6. Step 6: Final answer
    x = 2,096.23

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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.