Home / 3,118.46-4,655.98-2,807.42

Finding the Fourth Proportional to 3,118.46, 4,655.98 and 2,807.42

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Solution

The fourth proportional to 3,118.46, 4,655.98 and 2,807.42 is: 4,191.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.46 : 4,655.98 = 2,807.42 : x
  2. Step 2: Convert to fraction form
    3,118.46/4,655.98 = 2,807.42/x
  3. Step 3: Cross multiply
    3,118.46x = 4,655.98 × 2,807.42
  4. Step 4: Simplify right side
    3,118.46x = 13,071,291.37
  5. Step 5: Solve for x
    x = 13,071,291.37/3,118.46
  6. Step 6: Final answer
    x = 4,191.59

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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.