Home / 1,361.50-2,042.48-437.08

Finding the Fourth Proportional to 1,361.50, 2,042.48 and 437.08

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Solution

The fourth proportional to 1,361.50, 2,042.48 and 437.08 is: 655.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,361.50 : 2,042.48 = 437.08 : x
  2. Step 2: Convert to fraction form
    1,361.50/2,042.48 = 437.08/x
  3. Step 3: Cross multiply
    1,361.50x = 2,042.48 × 437.08
  4. Step 4: Simplify right side
    1,361.50x = 892,727.16
  5. Step 5: Solve for x
    x = 892,727.16/1,361.50
  6. Step 6: Final answer
    x = 655.69

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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.