Home / 3,972.96-5,483.52-2,646.72

Finding the Fourth Proportional to 3,972.96, 5,483.52 and 2,646.72

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Solution

The fourth proportional to 3,972.96, 5,483.52 and 2,646.72 is: 3,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,972.96 : 5,483.52 = 2,646.72 : x
  2. Step 2: Convert to fraction form
    3,972.96/5,483.52 = 2,646.72/x
  3. Step 3: Cross multiply
    3,972.96x = 5,483.52 × 2,646.72
  4. Step 4: Simplify right side
    3,972.96x = 14,513,342.05
  5. Step 5: Solve for x
    x = 14,513,342.05/3,972.96
  6. Step 6: Final answer
    x = 3,653.03

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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.