Home / 2,641.68-3,646.96-1,803.63

Finding the Fourth Proportional to 2,641.68, 3,646.96 and 1,803.63

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Solution

The fourth proportional to 2,641.68, 3,646.96 and 1,803.63 is: 2,489.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,641.68 : 3,646.96 = 1,803.63 : x
  2. Step 2: Convert to fraction form
    2,641.68/3,646.96 = 1,803.63/x
  3. Step 3: Cross multiply
    2,641.68x = 3,646.96 × 1,803.63
  4. Step 4: Simplify right side
    2,641.68x = 6,577,757.45
  5. Step 5: Solve for x
    x = 6,577,757.45/2,641.68
  6. Step 6: Final answer
    x = 2,489.99

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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.