Home / 1,296.40-1,944.08-474.48

Finding the Fourth Proportional to 1,296.40, 1,944.08 and 474.48

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Solution

The fourth proportional to 1,296.40, 1,944.08 and 474.48 is: 711.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296.40 : 1,944.08 = 474.48 : x
  2. Step 2: Convert to fraction form
    1,296.40/1,944.08 = 474.48/x
  3. Step 3: Cross multiply
    1,296.40x = 1,944.08 × 474.48
  4. Step 4: Simplify right side
    1,296.40x = 922,427.08
  5. Step 5: Solve for x
    x = 922,427.08/1,296.40
  6. Step 6: Final answer
    x = 711.53

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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.