Home / 3,130.23-4,319.71-1,732.98

Finding the Fourth Proportional to 3,130.23, 4,319.71 and 1,732.98

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Solution

The fourth proportional to 3,130.23, 4,319.71 and 1,732.98 is: 2,391.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,130.23 : 4,319.71 = 1,732.98 : x
  2. Step 2: Convert to fraction form
    3,130.23/4,319.71 = 1,732.98/x
  3. Step 3: Cross multiply
    3,130.23x = 4,319.71 × 1,732.98
  4. Step 4: Simplify right side
    3,130.23x = 7,485,966.70
  5. Step 5: Solve for x
    x = 7,485,966.70/3,130.23
  6. Step 6: Final answer
    x = 2,391.51

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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.