Home / 5,213.79-7,821.45-1,516.32

Finding the Fourth Proportional to 5,213.79, 7,821.45 and 1,516.32

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Solution

The fourth proportional to 5,213.79, 7,821.45 and 1,516.32 is: 2,274.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.79 : 7,821.45 = 1,516.32 : x
  2. Step 2: Convert to fraction form
    5,213.79/7,821.45 = 1,516.32/x
  3. Step 3: Cross multiply
    5,213.79x = 7,821.45 × 1,516.32
  4. Step 4: Simplify right side
    5,213.79x = 11,859,821.06
  5. Step 5: Solve for x
    x = 11,859,821.06/5,213.79
  6. Step 6: Final answer
    x = 2,274.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.