Home / 1,631.89-2,442.30-983.08

Finding the Fourth Proportional to 1,631.89, 2,442.30 and 983.08

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Solution

The fourth proportional to 1,631.89, 2,442.30 and 983.08 is: 1,471.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.89 : 2,442.30 = 983.08 : x
  2. Step 2: Convert to fraction form
    1,631.89/2,442.30 = 983.08/x
  3. Step 3: Cross multiply
    1,631.89x = 2,442.30 × 983.08
  4. Step 4: Simplify right side
    1,631.89x = 2,400,976.28
  5. Step 5: Solve for x
    x = 2,400,976.28/1,631.89
  6. Step 6: Final answer
    x = 1,471.29

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1.5x scale

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.