Home / 3,126.96-4,314.69-1,800.63

Finding the Fourth Proportional to 3,126.96, 4,314.69 and 1,800.63

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Solution

The fourth proportional to 3,126.96, 4,314.69 and 1,800.63 is: 2,484.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.96 : 4,314.69 = 1,800.63 : x
  2. Step 2: Convert to fraction form
    3,126.96/4,314.69 = 1,800.63/x
  3. Step 3: Cross multiply
    3,126.96x = 4,314.69 × 1,800.63
  4. Step 4: Simplify right side
    3,126.96x = 7,769,160.25
  5. Step 5: Solve for x
    x = 7,769,160.25/3,126.96
  6. Step 6: Final answer
    x = 2,484.57

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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.