Home / 3,685.79-5,088.34-2,960.07

Finding the Fourth Proportional to 3,685.79, 5,088.34 and 2,960.07

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Solution

The fourth proportional to 3,685.79, 5,088.34 and 2,960.07 is: 4,086.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.79 : 5,088.34 = 2,960.07 : x
  2. Step 2: Convert to fraction form
    3,685.79/5,088.34 = 2,960.07/x
  3. Step 3: Cross multiply
    3,685.79x = 5,088.34 × 2,960.07
  4. Step 4: Simplify right side
    3,685.79x = 15,061,835.18
  5. Step 5: Solve for x
    x = 15,061,835.18/3,685.79
  6. Step 6: Final answer
    x = 4,086.47

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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.