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Finding the Fourth Proportional to 1,437.84, 1,984.11 and 808.37

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Solution

The fourth proportional to 1,437.84, 1,984.11 and 808.37 is: 1,115.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.84 : 1,984.11 = 808.37 : x
  2. Step 2: Convert to fraction form
    1,437.84/1,984.11 = 808.37/x
  3. Step 3: Cross multiply
    1,437.84x = 1,984.11 × 808.37
  4. Step 4: Simplify right side
    1,437.84x = 1,603,895.00
  5. Step 5: Solve for x
    x = 1,603,895.00/1,437.84
  6. Step 6: Final answer
    x = 1,115.49

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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.