Home / 2,795.68-3,858.54-1,802.20

Finding the Fourth Proportional to 2,795.68, 3,858.54 and 1,802.20

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Solution

The fourth proportional to 2,795.68, 3,858.54 and 1,802.20 is: 2,487.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,795.68 : 3,858.54 = 1,802.20 : x
  2. Step 2: Convert to fraction form
    2,795.68/3,858.54 = 1,802.20/x
  3. Step 3: Cross multiply
    2,795.68x = 3,858.54 × 1,802.20
  4. Step 4: Simplify right side
    2,795.68x = 6,953,860.79
  5. Step 5: Solve for x
    x = 6,953,860.79/2,795.68
  6. Step 6: Final answer
    x = 2,487.36

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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.