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Finding the Fourth Proportional to 2,995.06, 4,129.86 and 2,455.06

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Solution

The fourth proportional to 2,995.06, 4,129.86 and 2,455.06 is: 3,385.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,995.06 : 4,129.86 = 2,455.06 : x
  2. Step 2: Convert to fraction form
    2,995.06/4,129.86 = 2,455.06/x
  3. Step 3: Cross multiply
    2,995.06x = 4,129.86 × 2,455.06
  4. Step 4: Simplify right side
    2,995.06x = 10,139,054.09
  5. Step 5: Solve for x
    x = 10,139,054.09/2,995.06
  6. Step 6: Final answer
    x = 3,385.26

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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.