Home / 2,147.36-2,962.88-1,362.40

Finding the Fourth Proportional to 2,147.36, 2,962.88 and 1,362.40

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Solution

The fourth proportional to 2,147.36, 2,962.88 and 1,362.40 is: 1,879.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,147.36 : 2,962.88 = 1,362.40 : x
  2. Step 2: Convert to fraction form
    2,147.36/2,962.88 = 1,362.40/x
  3. Step 3: Cross multiply
    2,147.36x = 2,962.88 × 1,362.40
  4. Step 4: Simplify right side
    2,147.36x = 4,036,627.71
  5. Step 5: Solve for x
    x = 4,036,627.71/2,147.36
  6. Step 6: Final answer
    x = 1,879.81

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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.