Home / 3,107.23-4,288.22-1,780.99

Finding the Fourth Proportional to 3,107.23, 4,288.22 and 1,780.99

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Solution

The fourth proportional to 3,107.23, 4,288.22 and 1,780.99 is: 2,457.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,107.23 : 4,288.22 = 1,780.99 : x
  2. Step 2: Convert to fraction form
    3,107.23/4,288.22 = 1,780.99/x
  3. Step 3: Cross multiply
    3,107.23x = 4,288.22 × 1,780.99
  4. Step 4: Simplify right side
    3,107.23x = 7,637,276.94
  5. Step 5: Solve for x
    x = 7,637,276.94/3,107.23
  6. Step 6: Final answer
    x = 2,457.91

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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.