Home / 3,490.80-5,260.16-2,888.06

Finding the Fourth Proportional to 3,490.80, 5,260.16 and 2,888.06

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Solution

The fourth proportional to 3,490.80, 5,260.16 and 2,888.06 is: 4,351.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,490.80 : 5,260.16 = 2,888.06 : x
  2. Step 2: Convert to fraction form
    3,490.80/5,260.16 = 2,888.06/x
  3. Step 3: Cross multiply
    3,490.80x = 5,260.16 × 2,888.06
  4. Step 4: Simplify right side
    3,490.80x = 15,191,657.69
  5. Step 5: Solve for x
    x = 15,191,657.69/3,490.80
  6. Step 6: Final answer
    x = 4,351.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.