Home / 3,579.18-5,368.69-1,386.64

Finding the Fourth Proportional to 3,579.18, 5,368.69 and 1,386.64

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Solution

The fourth proportional to 3,579.18, 5,368.69 and 1,386.64 is: 2,079.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,579.18 : 5,368.69 = 1,386.64 : x
  2. Step 2: Convert to fraction form
    3,579.18/5,368.69 = 1,386.64/x
  3. Step 3: Cross multiply
    3,579.18x = 5,368.69 × 1,386.64
  4. Step 4: Simplify right side
    3,579.18x = 7,444,440.30
  5. Step 5: Solve for x
    x = 7,444,440.30/3,579.18
  6. Step 6: Final answer
    x = 2,079.93

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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.