Home / 1,598.49-2,205.89-899.87

Finding the Fourth Proportional to 1,598.49, 2,205.89 and 899.87

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Solution

The fourth proportional to 1,598.49, 2,205.89 and 899.87 is: 1,241.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,598.49 : 2,205.89 = 899.87 : x
  2. Step 2: Convert to fraction form
    1,598.49/2,205.89 = 899.87/x
  3. Step 3: Cross multiply
    1,598.49x = 2,205.89 × 899.87
  4. Step 4: Simplify right side
    1,598.49x = 1,984,998.71
  5. Step 5: Solve for x
    x = 1,984,998.71/1,598.49
  6. Step 6: Final answer
    x = 1,241.80

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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.