Home / 1,607.74-2,218.57-899.46

Finding the Fourth Proportional to 1,607.74, 2,218.57 and 899.46

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Solution

The fourth proportional to 1,607.74, 2,218.57 and 899.46 is: 1,241.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,607.74 : 2,218.57 = 899.46 : x
  2. Step 2: Convert to fraction form
    1,607.74/2,218.57 = 899.46/x
  3. Step 3: Cross multiply
    1,607.74x = 2,218.57 × 899.46
  4. Step 4: Simplify right side
    1,607.74x = 1,995,517.78
  5. Step 5: Solve for x
    x = 1,995,517.78/1,607.74
  6. Step 6: Final answer
    x = 1,241.20

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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.