Home / 3,427.47-4,729.86-1,855.56

Finding the Fourth Proportional to 3,427.47, 4,729.86 and 1,855.56

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Solution

The fourth proportional to 3,427.47, 4,729.86 and 1,855.56 is: 2,560.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,427.47 : 4,729.86 = 1,855.56 : x
  2. Step 2: Convert to fraction form
    3,427.47/4,729.86 = 1,855.56/x
  3. Step 3: Cross multiply
    3,427.47x = 4,729.86 × 1,855.56
  4. Step 4: Simplify right side
    3,427.47x = 8,776,539.02
  5. Step 5: Solve for x
    x = 8,776,539.02/3,427.47
  6. Step 6: Final answer
    x = 2,560.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.