Home / 1,202.16-1,802.40-837.66

Finding the Fourth Proportional to 1,202.16, 1,802.40 and 837.66

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Solution

The fourth proportional to 1,202.16, 1,802.40 and 837.66 is: 1,255.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,202.16 : 1,802.40 = 837.66 : x
  2. Step 2: Convert to fraction form
    1,202.16/1,802.40 = 837.66/x
  3. Step 3: Cross multiply
    1,202.16x = 1,802.40 × 837.66
  4. Step 4: Simplify right side
    1,202.16x = 1,509,798.38
  5. Step 5: Solve for x
    x = 1,509,798.38/1,202.16
  6. Step 6: Final answer
    x = 1,255.90

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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.