Home / 1,776.10-2,447.64-1,277.86

Finding the Fourth Proportional to 1,776.10, 2,447.64 and 1,277.86

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Solution

The fourth proportional to 1,776.10, 2,447.64 and 1,277.86 is: 1,761.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776.10 : 2,447.64 = 1,277.86 : x
  2. Step 2: Convert to fraction form
    1,776.10/2,447.64 = 1,277.86/x
  3. Step 3: Cross multiply
    1,776.10x = 2,447.64 × 1,277.86
  4. Step 4: Simplify right side
    1,776.10x = 3,127,741.25
  5. Step 5: Solve for x
    x = 3,127,741.25/1,776.10
  6. Step 6: Final answer
    x = 1,761.02

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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.