Home / 2,972.13-4,455.99-1,802.39

Finding the Fourth Proportional to 2,972.13, 4,455.99 and 1,802.39

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Solution

The fourth proportional to 2,972.13, 4,455.99 and 1,802.39 is: 2,702.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,972.13 : 4,455.99 = 1,802.39 : x
  2. Step 2: Convert to fraction form
    2,972.13/4,455.99 = 1,802.39/x
  3. Step 3: Cross multiply
    2,972.13x = 4,455.99 × 1,802.39
  4. Step 4: Simplify right side
    2,972.13x = 8,031,431.82
  5. Step 5: Solve for x
    x = 8,031,431.82/2,972.13
  6. Step 6: Final answer
    x = 2,702.25

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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.