Home / 2,157.50-2,977.44-1,274.06

Finding the Fourth Proportional to 2,157.50, 2,977.44 and 1,274.06

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Solution

The fourth proportional to 2,157.50, 2,977.44 and 1,274.06 is: 1,758.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157.50 : 2,977.44 = 1,274.06 : x
  2. Step 2: Convert to fraction form
    2,157.50/2,977.44 = 1,274.06/x
  3. Step 3: Cross multiply
    2,157.50x = 2,977.44 × 1,274.06
  4. Step 4: Simplify right side
    2,157.50x = 3,793,437.21
  5. Step 5: Solve for x
    x = 3,793,437.21/2,157.50
  6. Step 6: Final answer
    x = 1,758.26

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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.