Home / 1,608.07-2,218.64-899.84

Finding the Fourth Proportional to 1,608.07, 2,218.64 and 899.84

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Solution

The fourth proportional to 1,608.07, 2,218.64 and 899.84 is: 1,241.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,608.07 : 2,218.64 = 899.84 : x
  2. Step 2: Convert to fraction form
    1,608.07/2,218.64 = 899.84/x
  3. Step 3: Cross multiply
    1,608.07x = 2,218.64 × 899.84
  4. Step 4: Simplify right side
    1,608.07x = 1,996,409.92
  5. Step 5: Solve for x
    x = 1,996,409.92/1,608.07
  6. Step 6: Final answer
    x = 1,241.50

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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.