Home / 5,678.15-7,835.79-3,160.22

Finding the Fourth Proportional to 5,678.15, 7,835.79 and 3,160.22

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Solution

The fourth proportional to 5,678.15, 7,835.79 and 3,160.22 is: 4,361.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,678.15 : 7,835.79 = 3,160.22 : x
  2. Step 2: Convert to fraction form
    5,678.15/7,835.79 = 3,160.22/x
  3. Step 3: Cross multiply
    5,678.15x = 7,835.79 × 3,160.22
  4. Step 4: Simplify right side
    5,678.15x = 24,762,841.28
  5. Step 5: Solve for x
    x = 24,762,841.28/5,678.15
  6. Step 6: Final answer
    x = 4,361.08

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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.