Home / 5,636.13-7,777.79-3,118.43

Finding the Fourth Proportional to 5,636.13, 7,777.79 and 3,118.43

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Solution

The fourth proportional to 5,636.13, 7,777.79 and 3,118.43 is: 4,303.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,636.13 : 7,777.79 = 3,118.43 : x
  2. Step 2: Convert to fraction form
    5,636.13/7,777.79 = 3,118.43/x
  3. Step 3: Cross multiply
    5,636.13x = 7,777.79 × 3,118.43
  4. Step 4: Simplify right side
    5,636.13x = 24,254,493.67
  5. Step 5: Solve for x
    x = 24,254,493.67/5,636.13
  6. Step 6: Final answer
    x = 4,303.40

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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.