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Finding the Fourth Proportional to 2,858.49, 4,305.42 and 2,655.72

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Solution

The fourth proportional to 2,858.49, 4,305.42 and 2,655.72 is: 4,000.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,858.49 : 4,305.42 = 2,655.72 : x
  2. Step 2: Convert to fraction form
    2,858.49/4,305.42 = 2,655.72/x
  3. Step 3: Cross multiply
    2,858.49x = 4,305.42 × 2,655.72
  4. Step 4: Simplify right side
    2,858.49x = 11,433,990.00
  5. Step 5: Solve for x
    x = 11,433,990.00/2,858.49
  6. Step 6: Final answer
    x = 4,000.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.