Home / 7,721.64-10,639.56-5,233.32

Finding the Fourth Proportional to 7,721.64, 10,639.56 and 5,233.32

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Solution

The fourth proportional to 7,721.64, 10,639.56 and 5,233.32 is: 7,210.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,721.64 : 10,639.56 = 5,233.32 : x
  2. Step 2: Convert to fraction form
    7,721.64/10,639.56 = 5,233.32/x
  3. Step 3: Cross multiply
    7,721.64x = 10,639.56 × 5,233.32
  4. Step 4: Simplify right side
    7,721.64x = 55,680,222.14
  5. Step 5: Solve for x
    x = 55,680,222.14/7,721.64
  6. Step 6: Final answer
    x = 7,210.93

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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.