Home / 3,686.16-5,528.46-1,089.12

Finding the Fourth Proportional to 3,686.16, 5,528.46 and 1,089.12

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Solution

The fourth proportional to 3,686.16, 5,528.46 and 1,089.12 is: 1,633.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.16 : 5,528.46 = 1,089.12 : x
  2. Step 2: Convert to fraction form
    3,686.16/5,528.46 = 1,089.12/x
  3. Step 3: Cross multiply
    3,686.16x = 5,528.46 × 1,089.12
  4. Step 4: Simplify right side
    3,686.16x = 6,021,156.36
  5. Step 5: Solve for x
    x = 6,021,156.36/3,686.16
  6. Step 6: Final answer
    x = 1,633.45

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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.