Home / 3,130.14-4,319.58-1,732.90

Finding the Fourth Proportional to 3,130.14, 4,319.58 and 1,732.90

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Solution

The fourth proportional to 3,130.14, 4,319.58 and 1,732.90 is: 2,391.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.14 : 4,319.58 = 1,732.90 : x
  2. Step 2: Convert to fraction form
    3,130.14/4,319.58 = 1,732.90/x
  3. Step 3: Cross multiply
    3,130.14x = 4,319.58 × 1,732.90
  4. Step 4: Simplify right side
    3,130.14x = 7,485,400.18
  5. Step 5: Solve for x
    x = 7,485,400.18/3,130.14
  6. Step 6: Final answer
    x = 2,391.39

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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.