Home / 1,777.44-2,676.48-1,318.47

Finding the Fourth Proportional to 1,777.44, 2,676.48 and 1,318.47

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Solution

The fourth proportional to 1,777.44, 2,676.48 and 1,318.47 is: 1,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,777.44 : 2,676.48 = 1,318.47 : x
  2. Step 2: Convert to fraction form
    1,777.44/2,676.48 = 1,318.47/x
  3. Step 3: Cross multiply
    1,777.44x = 2,676.48 × 1,318.47
  4. Step 4: Simplify right side
    1,777.44x = 3,528,858.59
  5. Step 5: Solve for x
    x = 3,528,858.59/1,777.44
  6. Step 6: Final answer
    x = 1,985.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.