Home / 3,116.24-4,675.44-1,386.08

Finding the Fourth Proportional to 3,116.24, 4,675.44 and 1,386.08

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Solution

The fourth proportional to 3,116.24, 4,675.44 and 1,386.08 is: 2,079.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,116.24 : 4,675.44 = 1,386.08 : x
  2. Step 2: Convert to fraction form
    3,116.24/4,675.44 = 1,386.08/x
  3. Step 3: Cross multiply
    3,116.24x = 4,675.44 × 1,386.08
  4. Step 4: Simplify right side
    3,116.24x = 6,480,533.88
  5. Step 5: Solve for x
    x = 6,480,533.88/3,116.24
  6. Step 6: Final answer
    x = 2,079.60

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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.