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Finding the Fourth Proportional to 1,437.81, 1,984.14 and 848.43

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Solution

The fourth proportional to 1,437.81, 1,984.14 and 848.43 is: 1,170.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,437.81 : 1,984.14 = 848.43 : x
  2. Step 2: Convert to fraction form
    1,437.81/1,984.14 = 848.43/x
  3. Step 3: Cross multiply
    1,437.81x = 1,984.14 × 848.43
  4. Step 4: Simplify right side
    1,437.81x = 1,683,403.90
  5. Step 5: Solve for x
    x = 1,683,403.90/1,437.81
  6. Step 6: Final answer
    x = 1,170.81

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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.