Home / 2,157.34-2,977.62-1,273.44

Finding the Fourth Proportional to 2,157.34, 2,977.62 and 1,273.44

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Solution

The fourth proportional to 2,157.34, 2,977.62 and 1,273.44 is: 1,757.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.34 : 2,977.62 = 1,273.44 : x
  2. Step 2: Convert to fraction form
    2,157.34/2,977.62 = 1,273.44/x
  3. Step 3: Cross multiply
    2,157.34x = 2,977.62 × 1,273.44
  4. Step 4: Simplify right side
    2,157.34x = 3,791,820.41
  5. Step 5: Solve for x
    x = 3,791,820.41/2,157.34
  6. Step 6: Final answer
    x = 1,757.64

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1.5x scale

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.