Home / 3,007.88-4,150.20-2,159.81

Finding the Fourth Proportional to 3,007.88, 4,150.20 and 2,159.81

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Solution

The fourth proportional to 3,007.88, 4,150.20 and 2,159.81 is: 2,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.88 : 4,150.20 = 2,159.81 : x
  2. Step 2: Convert to fraction form
    3,007.88/4,150.20 = 2,159.81/x
  3. Step 3: Cross multiply
    3,007.88x = 4,150.20 × 2,159.81
  4. Step 4: Simplify right side
    3,007.88x = 8,963,643.46
  5. Step 5: Solve for x
    x = 8,963,643.46/3,007.88
  6. Step 6: Final answer
    x = 2,980.05

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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.