Home / 4,690.32-6,471.18-3,118.68

Finding the Fourth Proportional to 4,690.32, 6,471.18 and 3,118.68

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Solution

The fourth proportional to 4,690.32, 6,471.18 and 3,118.68 is: 4,302.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,690.32 : 6,471.18 = 3,118.68 : x
  2. Step 2: Convert to fraction form
    4,690.32/6,471.18 = 3,118.68/x
  3. Step 3: Cross multiply
    4,690.32x = 6,471.18 × 3,118.68
  4. Step 4: Simplify right side
    4,690.32x = 20,181,539.64
  5. Step 5: Solve for x
    x = 20,181,539.64/4,690.32
  6. Step 6: Final answer
    x = 4,302.81

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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.