Home / 3,421.60-4,721.45-2,525.81

Finding the Fourth Proportional to 3,421.60, 4,721.45 and 2,525.81

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Solution

The fourth proportional to 3,421.60, 4,721.45 and 2,525.81 is: 3,485.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.60 : 4,721.45 = 2,525.81 : x
  2. Step 2: Convert to fraction form
    3,421.60/4,721.45 = 2,525.81/x
  3. Step 3: Cross multiply
    3,421.60x = 4,721.45 × 2,525.81
  4. Step 4: Simplify right side
    3,421.60x = 11,925,485.62
  5. Step 5: Solve for x
    x = 11,925,485.62/3,421.60
  6. Step 6: Final answer
    x = 3,485.36

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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.