Home / 3,126.63-4,314.36-1,782.44

Finding the Fourth Proportional to 3,126.63, 4,314.36 and 1,782.44

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Solution

The fourth proportional to 3,126.63, 4,314.36 and 1,782.44 is: 2,459.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.63 : 4,314.36 = 1,782.44 : x
  2. Step 2: Convert to fraction form
    3,126.63/4,314.36 = 1,782.44/x
  3. Step 3: Cross multiply
    3,126.63x = 4,314.36 × 1,782.44
  4. Step 4: Simplify right side
    3,126.63x = 7,690,089.13
  5. Step 5: Solve for x
    x = 7,690,089.13/3,126.63
  6. Step 6: Final answer
    x = 2,459.54

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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.