Home / 1,285.12-1,924.82-841.03

Finding the Fourth Proportional to 1,285.12, 1,924.82 and 841.03

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Solution

The fourth proportional to 1,285.12, 1,924.82 and 841.03 is: 1,259.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285.12 : 1,924.82 = 841.03 : x
  2. Step 2: Convert to fraction form
    1,285.12/1,924.82 = 841.03/x
  3. Step 3: Cross multiply
    1,285.12x = 1,924.82 × 841.03
  4. Step 4: Simplify right side
    1,285.12x = 1,618,822.08
  5. Step 5: Solve for x
    x = 1,618,822.08/1,285.12
  6. Step 6: Final answer
    x = 1,259.67

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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.