Home / 2,802.24-3,867.75-1,739.40

Finding the Fourth Proportional to 2,802.24, 3,867.75 and 1,739.40

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Solution

The fourth proportional to 2,802.24, 3,867.75 and 1,739.40 is: 2,400.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,802.24 : 3,867.75 = 1,739.40 : x
  2. Step 2: Convert to fraction form
    2,802.24/3,867.75 = 1,739.40/x
  3. Step 3: Cross multiply
    2,802.24x = 3,867.75 × 1,739.40
  4. Step 4: Simplify right side
    2,802.24x = 6,727,564.35
  5. Step 5: Solve for x
    x = 6,727,564.35/2,802.24
  6. Step 6: Final answer
    x = 2,400.78

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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.