Home / 3,206.30-4,801.80-1,557.55

Finding the Fourth Proportional to 3,206.30, 4,801.80 and 1,557.55

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Solution

The fourth proportional to 3,206.30, 4,801.80 and 1,557.55 is: 2,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,206.30 : 4,801.80 = 1,557.55 : x
  2. Step 2: Convert to fraction form
    3,206.30/4,801.80 = 1,557.55/x
  3. Step 3: Cross multiply
    3,206.30x = 4,801.80 × 1,557.55
  4. Step 4: Simplify right side
    3,206.30x = 7,479,043.59
  5. Step 5: Solve for x
    x = 7,479,043.59/3,206.30
  6. Step 6: Final answer
    x = 2,332.61

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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.