Home / 1,977.17-2,729.76-1,269.32

Finding the Fourth Proportional to 1,977.17, 2,729.76 and 1,269.32

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Solution

The fourth proportional to 1,977.17, 2,729.76 and 1,269.32 is: 1,752.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,977.17 : 2,729.76 = 1,269.32 : x
  2. Step 2: Convert to fraction form
    1,977.17/2,729.76 = 1,269.32/x
  3. Step 3: Cross multiply
    1,977.17x = 2,729.76 × 1,269.32
  4. Step 4: Simplify right side
    1,977.17x = 3,464,938.96
  5. Step 5: Solve for x
    x = 3,464,938.96/1,977.17
  6. Step 6: Final answer
    x = 1,752.47

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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.