Home / 5,390.10-7,438.68-3,032.22

Finding the Fourth Proportional to 5,390.10, 7,438.68 and 3,032.22

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Solution

The fourth proportional to 5,390.10, 7,438.68 and 3,032.22 is: 4,184.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,390.10 : 7,438.68 = 3,032.22 : x
  2. Step 2: Convert to fraction form
    5,390.10/7,438.68 = 3,032.22/x
  3. Step 3: Cross multiply
    5,390.10x = 7,438.68 × 3,032.22
  4. Step 4: Simplify right side
    5,390.10x = 22,555,714.27
  5. Step 5: Solve for x
    x = 22,555,714.27/5,390.10
  6. Step 6: Final answer
    x = 4,184.66

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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.