Home / 2,995.76-4,132.96-1,816.40

Finding the Fourth Proportional to 2,995.76, 4,132.96 and 1,816.40

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Solution

The fourth proportional to 2,995.76, 4,132.96 and 1,816.40 is: 2,505.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.76 : 4,132.96 = 1,816.40 : x
  2. Step 2: Convert to fraction form
    2,995.76/4,132.96 = 1,816.40/x
  3. Step 3: Cross multiply
    2,995.76x = 4,132.96 × 1,816.40
  4. Step 4: Simplify right side
    2,995.76x = 7,507,108.54
  5. Step 5: Solve for x
    x = 7,507,108.54/2,995.76
  6. Step 6: Final answer
    x = 2,505.91

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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.