Home / 3,106.74-4,287.30-1,709.49

Finding the Fourth Proportional to 3,106.74, 4,287.30 and 1,709.49

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Solution

The fourth proportional to 3,106.74, 4,287.30 and 1,709.49 is: 2,359.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,106.74 : 4,287.30 = 1,709.49 : x
  2. Step 2: Convert to fraction form
    3,106.74/4,287.30 = 1,709.49/x
  3. Step 3: Cross multiply
    3,106.74x = 4,287.30 × 1,709.49
  4. Step 4: Simplify right side
    3,106.74x = 7,329,096.48
  5. Step 5: Solve for x
    x = 7,329,096.48/3,106.74
  6. Step 6: Final answer
    x = 2,359.10

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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.