Home / 6,277.81-8,663.45-3,921.32

Finding the Fourth Proportional to 6,277.81, 8,663.45 and 3,921.32

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Solution

The fourth proportional to 6,277.81, 8,663.45 and 3,921.32 is: 5,411.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,277.81 : 8,663.45 = 3,921.32 : x
  2. Step 2: Convert to fraction form
    6,277.81/8,663.45 = 3,921.32/x
  3. Step 3: Cross multiply
    6,277.81x = 8,663.45 × 3,921.32
  4. Step 4: Simplify right side
    6,277.81x = 33,972,159.75
  5. Step 5: Solve for x
    x = 33,972,159.75/6,277.81
  6. Step 6: Final answer
    x = 5,411.47

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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.