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Finding the Fourth Proportional to 1,642.19, 2,462.55 and 601.91

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Solution

The fourth proportional to 1,642.19, 2,462.55 and 601.91 is: 902.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642.19 : 2,462.55 = 601.91 : x
  2. Step 2: Convert to fraction form
    1,642.19/2,462.55 = 601.91/x
  3. Step 3: Cross multiply
    1,642.19x = 2,462.55 × 601.91
  4. Step 4: Simplify right side
    1,642.19x = 1,482,237.37
  5. Step 5: Solve for x
    x = 1,482,237.37/1,642.19
  6. Step 6: Final answer
    x = 902.60

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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.