Home / 1,628.30-2,442.60-474.02

Finding the Fourth Proportional to 1,628.30, 2,442.60 and 474.02

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Solution

The fourth proportional to 1,628.30, 2,442.60 and 474.02 is: 711.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.30 : 2,442.60 = 474.02 : x
  2. Step 2: Convert to fraction form
    1,628.30/2,442.60 = 474.02/x
  3. Step 3: Cross multiply
    1,628.30x = 2,442.60 × 474.02
  4. Step 4: Simplify right side
    1,628.30x = 1,157,841.25
  5. Step 5: Solve for x
    x = 1,157,841.25/1,628.30
  6. Step 6: Final answer
    x = 711.07

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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.