Home / 3,875.40-5,813.99-1,376.45

Finding the Fourth Proportional to 3,875.40, 5,813.99 and 1,376.45

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Solution

The fourth proportional to 3,875.40, 5,813.99 and 1,376.45 is: 2,064.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,875.40 : 5,813.99 = 1,376.45 : x
  2. Step 2: Convert to fraction form
    3,875.40/5,813.99 = 1,376.45/x
  3. Step 3: Cross multiply
    3,875.40x = 5,813.99 × 1,376.45
  4. Step 4: Simplify right side
    3,875.40x = 8,002,666.54
  5. Step 5: Solve for x
    x = 8,002,666.54/3,875.40
  6. Step 6: Final answer
    x = 2,064.99

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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.