Home / 1,260.10-1,890.48-382.58

Finding the Fourth Proportional to 1,260.10, 1,890.48 and 382.58

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Solution

The fourth proportional to 1,260.10, 1,890.48 and 382.58 is: 573.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260.10 : 1,890.48 = 382.58 : x
  2. Step 2: Convert to fraction form
    1,260.10/1,890.48 = 382.58/x
  3. Step 3: Cross multiply
    1,260.10x = 1,890.48 × 382.58
  4. Step 4: Simplify right side
    1,260.10x = 723,259.84
  5. Step 5: Solve for x
    x = 723,259.84/1,260.10
  6. Step 6: Final answer
    x = 573.97

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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.