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Finding the Fourth Proportional to 2,393.81, 3,303.50 and 1,331.66

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Solution

The fourth proportional to 2,393.81, 3,303.50 and 1,331.66 is: 1,837.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,393.81 : 3,303.50 = 1,331.66 : x
  2. Step 2: Convert to fraction form
    2,393.81/3,303.50 = 1,331.66/x
  3. Step 3: Cross multiply
    2,393.81x = 3,303.50 × 1,331.66
  4. Step 4: Simplify right side
    2,393.81x = 4,399,150.40
  5. Step 5: Solve for x
    x = 4,399,150.40/2,393.81
  6. Step 6: Final answer
    x = 1,837.72

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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.