Home / 3,828.91-5,280.01-3,605.68

Finding the Fourth Proportional to 3,828.91, 5,280.01 and 3,605.68

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Solution

The fourth proportional to 3,828.91, 5,280.01 and 3,605.68 is: 4,972.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,828.91 : 5,280.01 = 3,605.68 : x
  2. Step 2: Convert to fraction form
    3,828.91/5,280.01 = 3,605.68/x
  3. Step 3: Cross multiply
    3,828.91x = 5,280.01 × 3,605.68
  4. Step 4: Simplify right side
    3,828.91x = 19,038,026.46
  5. Step 5: Solve for x
    x = 19,038,026.46/3,828.91
  6. Step 6: Final answer
    x = 4,972.18

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1.5x scale

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.