Home / 1,411.35-2,117.09-437.47

Finding the Fourth Proportional to 1,411.35, 2,117.09 and 437.47

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Solution

The fourth proportional to 1,411.35, 2,117.09 and 437.47 is: 656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411.35 : 2,117.09 = 437.47 : x
  2. Step 2: Convert to fraction form
    1,411.35/2,117.09 = 437.47/x
  3. Step 3: Cross multiply
    1,411.35x = 2,117.09 × 437.47
  4. Step 4: Simplify right side
    1,411.35x = 926,163.36
  5. Step 5: Solve for x
    x = 926,163.36/1,411.35
  6. Step 6: Final answer
    x = 656.23

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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.