Home / 3,525.80-4,867.98-3,151.58

Finding the Fourth Proportional to 3,525.80, 4,867.98 and 3,151.58

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Solution

The fourth proportional to 3,525.80, 4,867.98 and 3,151.58 is: 4,351.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,525.80 : 4,867.98 = 3,151.58 : x
  2. Step 2: Convert to fraction form
    3,525.80/4,867.98 = 3,151.58/x
  3. Step 3: Cross multiply
    3,525.80x = 4,867.98 × 3,151.58
  4. Step 4: Simplify right side
    3,525.80x = 15,341,828.41
  5. Step 5: Solve for x
    x = 15,341,828.41/3,525.80
  6. Step 6: Final answer
    x = 4,351.30

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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.