Home / 3,547.79-5,318.36-1,206.19

Finding the Fourth Proportional to 3,547.79, 5,318.36 and 1,206.19

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Solution

The fourth proportional to 3,547.79, 5,318.36 and 1,206.19 is: 1,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.79 : 5,318.36 = 1,206.19 : x
  2. Step 2: Convert to fraction form
    3,547.79/5,318.36 = 1,206.19/x
  3. Step 3: Cross multiply
    3,547.79x = 5,318.36 × 1,206.19
  4. Step 4: Simplify right side
    3,547.79x = 6,414,942.37
  5. Step 5: Solve for x
    x = 6,414,942.37/3,547.79
  6. Step 6: Final answer
    x = 1,808.15

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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.