Home / 3,890.60-5,822.20-2,430.44

Finding the Fourth Proportional to 3,890.60, 5,822.20 and 2,430.44

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Solution

The fourth proportional to 3,890.60, 5,822.20 and 2,430.44 is: 3,637.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,890.60 : 5,822.20 = 2,430.44 : x
  2. Step 2: Convert to fraction form
    3,890.60/5,822.20 = 2,430.44/x
  3. Step 3: Cross multiply
    3,890.60x = 5,822.20 × 2,430.44
  4. Step 4: Simplify right side
    3,890.60x = 14,150,507.77
  5. Step 5: Solve for x
    x = 14,150,507.77/3,890.60
  6. Step 6: Final answer
    x = 3,637.10

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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.