Home / 3,118.44-4,655.96-2,807.40

Finding the Fourth Proportional to 3,118.44, 4,655.96 and 2,807.40

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Solution

The fourth proportional to 3,118.44, 4,655.96 and 2,807.40 is: 4,191.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.44 : 4,655.96 = 2,807.40 : x
  2. Step 2: Convert to fraction form
    3,118.44/4,655.96 = 2,807.40/x
  3. Step 3: Cross multiply
    3,118.44x = 4,655.96 × 2,807.40
  4. Step 4: Simplify right side
    3,118.44x = 13,071,142.10
  5. Step 5: Solve for x
    x = 13,071,142.10/3,118.44
  6. Step 6: Final answer
    x = 4,191.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.