Home / 1,362.16-2,043.21-437.70

Finding the Fourth Proportional to 1,362.16, 2,043.21 and 437.70

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Solution

The fourth proportional to 1,362.16, 2,043.21 and 437.70 is: 656.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,362.16 : 2,043.21 = 437.70 : x
  2. Step 2: Convert to fraction form
    1,362.16/2,043.21 = 437.70/x
  3. Step 3: Cross multiply
    1,362.16x = 2,043.21 × 437.70
  4. Step 4: Simplify right side
    1,362.16x = 894,313.02
  5. Step 5: Solve for x
    x = 894,313.02/1,362.16
  6. Step 6: Final answer
    x = 656.54

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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.