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Finding the Fourth Proportional to 1,504.58, 2,076.37 and 841.42

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Solution

The fourth proportional to 1,504.58, 2,076.37 and 841.42 is: 1,161.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,504.58 : 2,076.37 = 841.42 : x
  2. Step 2: Convert to fraction form
    1,504.58/2,076.37 = 841.42/x
  3. Step 3: Cross multiply
    1,504.58x = 2,076.37 × 841.42
  4. Step 4: Simplify right side
    1,504.58x = 1,747,099.74
  5. Step 5: Solve for x
    x = 1,747,099.74/1,504.58
  6. Step 6: Final answer
    x = 1,161.19

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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.