Home / 2,802.18-3,867-1,623.36

Finding the Fourth Proportional to 2,802.18, 3,867 and 1,623.36

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Solution

The fourth proportional to 2,802.18, 3,867 and 1,623.36 is: 2,240.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.18 : 3,867 = 1,623.36 : x
  2. Step 2: Convert to fraction form
    2,802.18/3,867 = 1,623.36/x
  3. Step 3: Cross multiply
    2,802.18x = 3,867 × 1,623.36
  4. Step 4: Simplify right side
    2,802.18x = 6,277,533.12
  5. Step 5: Solve for x
    x = 6,277,533.12/2,802.18
  6. Step 6: Final answer
    x = 2,240.23

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1.5x scale

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.