Home / 5,240.55-7,860.80-1,952.86

Finding the Fourth Proportional to 5,240.55, 7,860.80 and 1,952.86

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Solution

The fourth proportional to 5,240.55, 7,860.80 and 1,952.86 is: 2,929.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,240.55 : 7,860.80 = 1,952.86 : x
  2. Step 2: Convert to fraction form
    5,240.55/7,860.80 = 1,952.86/x
  3. Step 3: Cross multiply
    5,240.55x = 7,860.80 × 1,952.86
  4. Step 4: Simplify right side
    5,240.55x = 15,351,030.87
  5. Step 5: Solve for x
    x = 15,351,030.87/5,240.55
  6. Step 6: Final answer
    x = 2,929.28

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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.