Home / 1,341.25-2,010.43-561.05

Finding the Fourth Proportional to 1,341.25, 2,010.43 and 561.05

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Solution

The fourth proportional to 1,341.25, 2,010.43 and 561.05 is: 840.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,341.25 : 2,010.43 = 561.05 : x
  2. Step 2: Convert to fraction form
    1,341.25/2,010.43 = 561.05/x
  3. Step 3: Cross multiply
    1,341.25x = 2,010.43 × 561.05
  4. Step 4: Simplify right side
    1,341.25x = 1,127,951.75
  5. Step 5: Solve for x
    x = 1,127,951.75/1,341.25
  6. Step 6: Final answer
    x = 840.97

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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.