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Finding the Fourth Proportional to 3,245.76, 4,479.14 and 1,753.68

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Solution

The fourth proportional to 3,245.76, 4,479.14 and 1,753.68 is: 2,420.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,245.76 : 4,479.14 = 1,753.68 : x
  2. Step 2: Convert to fraction form
    3,245.76/4,479.14 = 1,753.68/x
  3. Step 3: Cross multiply
    3,245.76x = 4,479.14 × 1,753.68
  4. Step 4: Simplify right side
    3,245.76x = 7,854,955.84
  5. Step 5: Solve for x
    x = 7,854,955.84/3,245.76
  6. Step 6: Final answer
    x = 2,420.07

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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.