Home / 2,147.04-2,963.40-1,216.08

Finding the Fourth Proportional to 2,147.04, 2,963.40 and 1,216.08

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Solution

The fourth proportional to 2,147.04, 2,963.40 and 1,216.08 is: 1,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.04 : 2,963.40 = 1,216.08 : x
  2. Step 2: Convert to fraction form
    2,147.04/2,963.40 = 1,216.08/x
  3. Step 3: Cross multiply
    2,147.04x = 2,963.40 × 1,216.08
  4. Step 4: Simplify right side
    2,147.04x = 3,603,731.47
  5. Step 5: Solve for x
    x = 3,603,731.47/2,147.04
  6. Step 6: Final answer
    x = 1,678.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.