Home / 1,864.21-2,571.85-1,235.05

Finding the Fourth Proportional to 1,864.21, 2,571.85 and 1,235.05

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Solution

The fourth proportional to 1,864.21, 2,571.85 and 1,235.05 is: 1,703.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,864.21 : 2,571.85 = 1,235.05 : x
  2. Step 2: Convert to fraction form
    1,864.21/2,571.85 = 1,235.05/x
  3. Step 3: Cross multiply
    1,864.21x = 2,571.85 × 1,235.05
  4. Step 4: Simplify right side
    1,864.21x = 3,176,363.34
  5. Step 5: Solve for x
    x = 3,176,363.34/1,864.21
  6. Step 6: Final answer
    x = 1,703.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.