Home / 1,450.11-2,001.14-786.96

Finding the Fourth Proportional to 1,450.11, 2,001.14 and 786.96

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Solution

The fourth proportional to 1,450.11, 2,001.14 and 786.96 is: 1,086.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,450.11 : 2,001.14 = 786.96 : x
  2. Step 2: Convert to fraction form
    1,450.11/2,001.14 = 786.96/x
  3. Step 3: Cross multiply
    1,450.11x = 2,001.14 × 786.96
  4. Step 4: Simplify right side
    1,450.11x = 1,574,813.20
  5. Step 5: Solve for x
    x = 1,574,813.20/1,450.11
  6. Step 6: Final answer
    x = 1,086.00

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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.