Home / 1,630.23-2,445.34-705.31

Finding the Fourth Proportional to 1,630.23, 2,445.34 and 705.31

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Solution

The fourth proportional to 1,630.23, 2,445.34 and 705.31 is: 1,057.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.23 : 2,445.34 = 705.31 : x
  2. Step 2: Convert to fraction form
    1,630.23/2,445.34 = 705.31/x
  3. Step 3: Cross multiply
    1,630.23x = 2,445.34 × 705.31
  4. Step 4: Simplify right side
    1,630.23x = 1,724,716.20
  5. Step 5: Solve for x
    x = 1,724,716.20/1,630.23
  6. Step 6: Final answer
    x = 1,057.96

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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.