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Finding the Fourth Proportional to 1,513.01, 2,088.09 and 850.03

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Solution

The fourth proportional to 1,513.01, 2,088.09 and 850.03 is: 1,173.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513.01 : 2,088.09 = 850.03 : x
  2. Step 2: Convert to fraction form
    1,513.01/2,088.09 = 850.03/x
  3. Step 3: Cross multiply
    1,513.01x = 2,088.09 × 850.03
  4. Step 4: Simplify right side
    1,513.01x = 1,774,933.92
  5. Step 5: Solve for x
    x = 1,774,933.92/1,513.01
  6. Step 6: Final answer
    x = 1,173.11

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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.