Home / 1,475.36-2,212.80-488.17

Finding the Fourth Proportional to 1,475.36, 2,212.80 and 488.17

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Solution

The fourth proportional to 1,475.36, 2,212.80 and 488.17 is: 732.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,475.36 : 2,212.80 = 488.17 : x
  2. Step 2: Convert to fraction form
    1,475.36/2,212.80 = 488.17/x
  3. Step 3: Cross multiply
    1,475.36x = 2,212.80 × 488.17
  4. Step 4: Simplify right side
    1,475.36x = 1,080,222.58
  5. Step 5: Solve for x
    x = 1,080,222.58/1,475.36
  6. Step 6: Final answer
    x = 732.18

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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.