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Finding the Fourth Proportional to 4,480.58, 6,719.78 and 1,402.58

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Solution

The fourth proportional to 4,480.58, 6,719.78 and 1,402.58 is: 2,103.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,480.58 : 6,719.78 = 1,402.58 : x
  2. Step 2: Convert to fraction form
    4,480.58/6,719.78 = 1,402.58/x
  3. Step 3: Cross multiply
    4,480.58x = 6,719.78 × 1,402.58
  4. Step 4: Simplify right side
    4,480.58x = 9,425,029.03
  5. Step 5: Solve for x
    x = 9,425,029.03/4,480.58
  6. Step 6: Final answer
    x = 2,103.53

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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.