Home / 3,126.15-4,681.13-1,822.05

Finding the Fourth Proportional to 3,126.15, 4,681.13 and 1,822.05

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Solution

The fourth proportional to 3,126.15, 4,681.13 and 1,822.05 is: 2,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,126.15 : 4,681.13 = 1,822.05 : x
  2. Step 2: Convert to fraction form
    3,126.15/4,681.13 = 1,822.05/x
  3. Step 3: Cross multiply
    3,126.15x = 4,681.13 × 1,822.05
  4. Step 4: Simplify right side
    3,126.15x = 8,529,243.81
  5. Step 5: Solve for x
    x = 8,529,243.81/3,126.15
  6. Step 6: Final answer
    x = 2,728.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.