Home / 4,645.40-7,002.25-4,377.72

Finding the Fourth Proportional to 4,645.40, 7,002.25 and 4,377.72

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Solution

The fourth proportional to 4,645.40, 7,002.25 and 4,377.72 is: 6,598.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.40 : 7,002.25 = 4,377.72 : x
  2. Step 2: Convert to fraction form
    4,645.40/7,002.25 = 4,377.72/x
  3. Step 3: Cross multiply
    4,645.40x = 7,002.25 × 4,377.72
  4. Step 4: Simplify right side
    4,645.40x = 30,653,889.87
  5. Step 5: Solve for x
    x = 30,653,889.87/4,645.40
  6. Step 6: Final answer
    x = 6,598.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.