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Finding the Fourth Proportional to 1,436.02, 2,154.23 and 570.13

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Solution

The fourth proportional to 1,436.02, 2,154.23 and 570.13 is: 855.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436.02 : 2,154.23 = 570.13 : x
  2. Step 2: Convert to fraction form
    1,436.02/2,154.23 = 570.13/x
  3. Step 3: Cross multiply
    1,436.02x = 2,154.23 × 570.13
  4. Step 4: Simplify right side
    1,436.02x = 1,228,191.15
  5. Step 5: Solve for x
    x = 1,228,191.15/1,436.02
  6. Step 6: Final answer
    x = 855.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.