Home / 3,421.60-5,133.21-1,777.77

Finding the Fourth Proportional to 3,421.60, 5,133.21 and 1,777.77

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Solution

The fourth proportional to 3,421.60, 5,133.21 and 1,777.77 is: 2,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,421.60 : 5,133.21 = 1,777.77 : x
  2. Step 2: Convert to fraction form
    3,421.60/5,133.21 = 1,777.77/x
  3. Step 3: Cross multiply
    3,421.60x = 5,133.21 × 1,777.77
  4. Step 4: Simplify right side
    3,421.60x = 9,125,660.08
  5. Step 5: Solve for x
    x = 9,125,660.08/3,421.60
  6. Step 6: Final answer
    x = 2,667.08

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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.