Home / 3,815.65-5,252.79-3,395.35

Finding the Fourth Proportional to 3,815.65, 5,252.79 and 3,395.35

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Solution

The fourth proportional to 3,815.65, 5,252.79 and 3,395.35 is: 4,674.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,815.65 : 5,252.79 = 3,395.35 : x
  2. Step 2: Convert to fraction form
    3,815.65/5,252.79 = 3,395.35/x
  3. Step 3: Cross multiply
    3,815.65x = 5,252.79 × 3,395.35
  4. Step 4: Simplify right side
    3,815.65x = 17,835,060.53
  5. Step 5: Solve for x
    x = 17,835,060.53/3,815.65
  6. Step 6: Final answer
    x = 4,674.19

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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.