Home / 3,007.90-4,150.99-1,681.66

Finding the Fourth Proportional to 3,007.90, 4,150.99 and 1,681.66

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Solution

The fourth proportional to 3,007.90, 4,150.99 and 1,681.66 is: 2,320.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.90 : 4,150.99 = 1,681.66 : x
  2. Step 2: Convert to fraction form
    3,007.90/4,150.99 = 1,681.66/x
  3. Step 3: Cross multiply
    3,007.90x = 4,150.99 × 1,681.66
  4. Step 4: Simplify right side
    3,007.90x = 6,980,553.84
  5. Step 5: Solve for x
    x = 6,980,553.84/3,007.90
  6. Step 6: Final answer
    x = 2,320.74

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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.