Home / 4,812.88-6,641.29-2,688.07

Finding the Fourth Proportional to 4,812.88, 6,641.29 and 2,688.07

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Solution

The fourth proportional to 4,812.88, 6,641.29 and 2,688.07 is: 3,709.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,812.88 : 6,641.29 = 2,688.07 : x
  2. Step 2: Convert to fraction form
    4,812.88/6,641.29 = 2,688.07/x
  3. Step 3: Cross multiply
    4,812.88x = 6,641.29 × 2,688.07
  4. Step 4: Simplify right side
    4,812.88x = 17,852,229.09
  5. Step 5: Solve for x
    x = 17,852,229.09/4,812.88
  6. Step 6: Final answer
    x = 3,709.26

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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.