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Finding the Fourth Proportional to 3,900.66, 5,850.98 and 1,303.59

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Solution

The fourth proportional to 3,900.66, 5,850.98 and 1,303.59 is: 1,955.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,900.66 : 5,850.98 = 1,303.59 : x
  2. Step 2: Convert to fraction form
    3,900.66/5,850.98 = 1,303.59/x
  3. Step 3: Cross multiply
    3,900.66x = 5,850.98 × 1,303.59
  4. Step 4: Simplify right side
    3,900.66x = 7,627,306.66
  5. Step 5: Solve for x
    x = 7,627,306.66/3,900.66
  6. Step 6: Final answer
    x = 1,955.39

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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.