Home / 4,724.64-7,088.76-2,129.40

Finding the Fourth Proportional to 4,724.64, 7,088.76 and 2,129.40

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Solution

The fourth proportional to 4,724.64, 7,088.76 and 2,129.40 is: 3,194.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,724.64 : 7,088.76 = 2,129.40 : x
  2. Step 2: Convert to fraction form
    4,724.64/7,088.76 = 2,129.40/x
  3. Step 3: Cross multiply
    4,724.64x = 7,088.76 × 2,129.40
  4. Step 4: Simplify right side
    4,724.64x = 15,094,805.54
  5. Step 5: Solve for x
    x = 15,094,805.54/4,724.64
  6. Step 6: Final answer
    x = 3,194.91

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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.