Home / 2,153.34-2,972.10-1,269.44

Finding the Fourth Proportional to 2,153.34, 2,972.10 and 1,269.44

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Solution

The fourth proportional to 2,153.34, 2,972.10 and 1,269.44 is: 1,752.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,153.34 : 2,972.10 = 1,269.44 : x
  2. Step 2: Convert to fraction form
    2,153.34/2,972.10 = 1,269.44/x
  3. Step 3: Cross multiply
    2,153.34x = 2,972.10 × 1,269.44
  4. Step 4: Simplify right side
    2,153.34x = 3,772,887.76
  5. Step 5: Solve for x
    x = 3,772,887.76/2,153.34
  6. Step 6: Final answer
    x = 1,752.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.