Home / 3,698.16-5,548.68-1,389.12

Finding the Fourth Proportional to 3,698.16, 5,548.68 and 1,389.12

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Solution

The fourth proportional to 3,698.16, 5,548.68 and 1,389.12 is: 2,084.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,698.16 : 5,548.68 = 1,389.12 : x
  2. Step 2: Convert to fraction form
    3,698.16/5,548.68 = 1,389.12/x
  3. Step 3: Cross multiply
    3,698.16x = 5,548.68 × 1,389.12
  4. Step 4: Simplify right side
    3,698.16x = 7,707,782.36
  5. Step 5: Solve for x
    x = 7,707,782.36/3,698.16
  6. Step 6: Final answer
    x = 2,084.22

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1.5x scale

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.