Home / 3,130.56-4,320.12-1,733.28

Finding the Fourth Proportional to 3,130.56, 4,320.12 and 1,733.28

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Solution

The fourth proportional to 3,130.56, 4,320.12 and 1,733.28 is: 2,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.56 : 4,320.12 = 1,733.28 : x
  2. Step 2: Convert to fraction form
    3,130.56/4,320.12 = 1,733.28/x
  3. Step 3: Cross multiply
    3,130.56x = 4,320.12 × 1,733.28
  4. Step 4: Simplify right side
    3,130.56x = 7,487,977.59
  5. Step 5: Solve for x
    x = 7,487,977.59/3,130.56
  6. Step 6: Final answer
    x = 2,391.90

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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.