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Finding the Fourth Proportional to 1,628, 2,442.72 and 602.72

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Solution

The fourth proportional to 1,628, 2,442.72 and 602.72 is: 904.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628 : 2,442.72 = 602.72 : x
  2. Step 2: Convert to fraction form
    1,628/2,442.72 = 602.72/x
  3. Step 3: Cross multiply
    1,628x = 2,442.72 × 602.72
  4. Step 4: Simplify right side
    1,628x = 1,472,276.20
  5. Step 5: Solve for x
    x = 1,472,276.20/1,628
  6. Step 6: Final answer
    x = 904.35

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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.