Home / 3,137.13-4,329.86-1,810.76

Finding the Fourth Proportional to 3,137.13, 4,329.86 and 1,810.76

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Solution

The fourth proportional to 3,137.13, 4,329.86 and 1,810.76 is: 2,499.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,137.13 : 4,329.86 = 1,810.76 : x
  2. Step 2: Convert to fraction form
    3,137.13/4,329.86 = 1,810.76/x
  3. Step 3: Cross multiply
    3,137.13x = 4,329.86 × 1,810.76
  4. Step 4: Simplify right side
    3,137.13x = 7,840,306.59
  5. Step 5: Solve for x
    x = 7,840,306.59/3,137.13
  6. Step 6: Final answer
    x = 2,499.20

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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.