Home / 3,405.98-5,107.41-1,557.02

Finding the Fourth Proportional to 3,405.98, 5,107.41 and 1,557.02

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Solution

The fourth proportional to 3,405.98, 5,107.41 and 1,557.02 is: 2,334.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.98 : 5,107.41 = 1,557.02 : x
  2. Step 2: Convert to fraction form
    3,405.98/5,107.41 = 1,557.02/x
  3. Step 3: Cross multiply
    3,405.98x = 5,107.41 × 1,557.02
  4. Step 4: Simplify right side
    3,405.98x = 7,952,339.52
  5. Step 5: Solve for x
    x = 7,952,339.52/3,405.98
  6. Step 6: Final answer
    x = 2,334.82

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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.