Home / 1,802.03-2,702.12-1,281.70

Finding the Fourth Proportional to 1,802.03, 2,702.12 and 1,281.70

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Solution

The fourth proportional to 1,802.03, 2,702.12 and 1,281.70 is: 1,921.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,802.03 : 2,702.12 = 1,281.70 : x
  2. Step 2: Convert to fraction form
    1,802.03/2,702.12 = 1,281.70/x
  3. Step 3: Cross multiply
    1,802.03x = 2,702.12 × 1,281.70
  4. Step 4: Simplify right side
    1,802.03x = 3,463,287.28
  5. Step 5: Solve for x
    x = 3,463,287.28/1,802.03
  6. Step 6: Final answer
    x = 1,921.88

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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.