Home / 5,688.23-7,848.80-3,169.78

Finding the Fourth Proportional to 5,688.23, 7,848.80 and 3,169.78

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Solution

The fourth proportional to 5,688.23, 7,848.80 and 3,169.78 is: 4,373.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,688.23 : 7,848.80 = 3,169.78 : x
  2. Step 2: Convert to fraction form
    5,688.23/7,848.80 = 3,169.78/x
  3. Step 3: Cross multiply
    5,688.23x = 7,848.80 × 3,169.78
  4. Step 4: Simplify right side
    5,688.23x = 24,878,989.83
  5. Step 5: Solve for x
    x = 24,878,989.83/5,688.23
  6. Step 6: Final answer
    x = 4,373.77

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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.