Home / 2,995.12-4,133.64-1,816.12

Finding the Fourth Proportional to 2,995.12, 4,133.64 and 1,816.12

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Solution

The fourth proportional to 2,995.12, 4,133.64 and 1,816.12 is: 2,506.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.12 : 4,133.64 = 1,816.12 : x
  2. Step 2: Convert to fraction form
    2,995.12/4,133.64 = 1,816.12/x
  3. Step 3: Cross multiply
    2,995.12x = 4,133.64 × 1,816.12
  4. Step 4: Simplify right side
    2,995.12x = 7,507,186.28
  5. Step 5: Solve for x
    x = 7,507,186.28/2,995.12
  6. Step 6: Final answer
    x = 2,506.47

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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.