Home / 5,200.13-7,800.26-1,304.55

Finding the Fourth Proportional to 5,200.13, 7,800.26 and 1,304.55

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Solution

The fourth proportional to 5,200.13, 7,800.26 and 1,304.55 is: 1,956.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,200.13 : 7,800.26 = 1,304.55 : x
  2. Step 2: Convert to fraction form
    5,200.13/7,800.26 = 1,304.55/x
  3. Step 3: Cross multiply
    5,200.13x = 7,800.26 × 1,304.55
  4. Step 4: Simplify right side
    5,200.13x = 10,175,822.66
  5. Step 5: Solve for x
    x = 10,175,822.66/5,200.13
  6. Step 6: Final answer
    x = 1,956.84

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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.