Home / 3,437.58-5,155.05-1,245.78

Finding the Fourth Proportional to 3,437.58, 5,155.05 and 1,245.78

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Solution

The fourth proportional to 3,437.58, 5,155.05 and 1,245.78 is: 1,868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,437.58 : 5,155.05 = 1,245.78 : x
  2. Step 2: Convert to fraction form
    3,437.58/5,155.05 = 1,245.78/x
  3. Step 3: Cross multiply
    3,437.58x = 5,155.05 × 1,245.78
  4. Step 4: Simplify right side
    3,437.58x = 6,422,058.19
  5. Step 5: Solve for x
    x = 6,422,058.19/3,437.58
  6. Step 6: Final answer
    x = 1,868.19

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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.