Home / 3,126.56-4,315.61-1,801.14

Finding the Fourth Proportional to 3,126.56, 4,315.61 and 1,801.14

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Solution

The fourth proportional to 3,126.56, 4,315.61 and 1,801.14 is: 2,486.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.56 : 4,315.61 = 1,801.14 : x
  2. Step 2: Convert to fraction form
    3,126.56/4,315.61 = 1,801.14/x
  3. Step 3: Cross multiply
    3,126.56x = 4,315.61 × 1,801.14
  4. Step 4: Simplify right side
    3,126.56x = 7,773,008.79
  5. Step 5: Solve for x
    x = 7,773,008.79/3,126.56
  6. Step 6: Final answer
    x = 2,486.13

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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.