Home / 3,685.79-5,528.07-1,345.29

Finding the Fourth Proportional to 3,685.79, 5,528.07 and 1,345.29

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Solution

The fourth proportional to 3,685.79, 5,528.07 and 1,345.29 is: 2,017.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,685.79 : 5,528.07 = 1,345.29 : x
  2. Step 2: Convert to fraction form
    3,685.79/5,528.07 = 1,345.29/x
  3. Step 3: Cross multiply
    3,685.79x = 5,528.07 × 1,345.29
  4. Step 4: Simplify right side
    3,685.79x = 7,436,857.29
  5. Step 5: Solve for x
    x = 7,436,857.29/3,685.79
  6. Step 6: Final answer
    x = 2,017.71

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1.5x scale

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.