Home / 3,580.79-5,350.82-2,685.47

Finding the Fourth Proportional to 3,580.79, 5,350.82 and 2,685.47

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Solution

The fourth proportional to 3,580.79, 5,350.82 and 2,685.47 is: 4,012.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,580.79 : 5,350.82 = 2,685.47 : x
  2. Step 2: Convert to fraction form
    3,580.79/5,350.82 = 2,685.47/x
  3. Step 3: Cross multiply
    3,580.79x = 5,350.82 × 2,685.47
  4. Step 4: Simplify right side
    3,580.79x = 14,369,426.40
  5. Step 5: Solve for x
    x = 14,369,426.40/3,580.79
  6. Step 6: Final answer
    x = 4,012.93

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.