Home / 2,289.08-3,162.36-2,159.48

Finding the Fourth Proportional to 2,289.08, 3,162.36 and 2,159.48

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Solution

The fourth proportional to 2,289.08, 3,162.36 and 2,159.48 is: 2,983.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,289.08 : 3,162.36 = 2,159.48 : x
  2. Step 2: Convert to fraction form
    2,289.08/3,162.36 = 2,159.48/x
  3. Step 3: Cross multiply
    2,289.08x = 3,162.36 × 2,159.48
  4. Step 4: Simplify right side
    2,289.08x = 6,829,053.17
  5. Step 5: Solve for x
    x = 6,829,053.17/2,289.08
  6. Step 6: Final answer
    x = 2,983.32

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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.