Home / 3,007.49-4,150.31-1,681.31

Finding the Fourth Proportional to 3,007.49, 4,150.31 and 1,681.31

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Solution

The fourth proportional to 3,007.49, 4,150.31 and 1,681.31 is: 2,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.49 : 4,150.31 = 1,681.31 : x
  2. Step 2: Convert to fraction form
    3,007.49/4,150.31 = 1,681.31/x
  3. Step 3: Cross multiply
    3,007.49x = 4,150.31 × 1,681.31
  4. Step 4: Simplify right side
    3,007.49x = 6,977,959.68
  5. Step 5: Solve for x
    x = 6,977,959.68/3,007.49
  6. Step 6: Final answer
    x = 2,320.20

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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.