Home / 3,526.89-5,290.40-1,336.65

Finding the Fourth Proportional to 3,526.89, 5,290.40 and 1,336.65

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Solution

The fourth proportional to 3,526.89, 5,290.40 and 1,336.65 is: 2,005.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,526.89 : 5,290.40 = 1,336.65 : x
  2. Step 2: Convert to fraction form
    3,526.89/5,290.40 = 1,336.65/x
  3. Step 3: Cross multiply
    3,526.89x = 5,290.40 × 1,336.65
  4. Step 4: Simplify right side
    3,526.89x = 7,071,413.16
  5. Step 5: Solve for x
    x = 7,071,413.16/3,526.89
  6. Step 6: Final answer
    x = 2,005.00

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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.