Home / 2,643.47-3,645.84-1,803.30

Finding the Fourth Proportional to 2,643.47, 3,645.84 and 1,803.30

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Solution

The fourth proportional to 2,643.47, 3,645.84 and 1,803.30 is: 2,487.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,643.47 : 3,645.84 = 1,803.30 : x
  2. Step 2: Convert to fraction form
    2,643.47/3,645.84 = 1,803.30/x
  3. Step 3: Cross multiply
    2,643.47x = 3,645.84 × 1,803.30
  4. Step 4: Simplify right side
    2,643.47x = 6,574,536.36
  5. Step 5: Solve for x
    x = 6,574,536.36/2,643.47
  6. Step 6: Final answer
    x = 2,487.09

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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.