Home / 4,430.39-6,645.58-4,238.21

Finding the Fourth Proportional to 4,430.39, 6,645.58 and 4,238.21

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Solution

The fourth proportional to 4,430.39, 6,645.58 and 4,238.21 is: 6,357.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,430.39 : 6,645.58 = 4,238.21 : x
  2. Step 2: Convert to fraction form
    4,430.39/6,645.58 = 4,238.21/x
  3. Step 3: Cross multiply
    4,430.39x = 6,645.58 × 4,238.21
  4. Step 4: Simplify right side
    4,430.39x = 28,165,369.63
  5. Step 5: Solve for x
    x = 28,165,369.63/4,430.39
  6. Step 6: Final answer
    x = 6,357.32

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Similar ratio
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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.