Home / 3,007.02-4,149.58-1,680.69

Finding the Fourth Proportional to 3,007.02, 4,149.58 and 1,680.69

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Solution

The fourth proportional to 3,007.02, 4,149.58 and 1,680.69 is: 2,319.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.02 : 4,149.58 = 1,680.69 : x
  2. Step 2: Convert to fraction form
    3,007.02/4,149.58 = 1,680.69/x
  3. Step 3: Cross multiply
    3,007.02x = 4,149.58 × 1,680.69
  4. Step 4: Simplify right side
    3,007.02x = 6,974,157.61
  5. Step 5: Solve for x
    x = 6,974,157.61/3,007.02
  6. Step 6: Final answer
    x = 2,319.29

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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.