Home / 3,686.40-5,525.10-2,516.40

Finding the Fourth Proportional to 3,686.40, 5,525.10 and 2,516.40

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Solution

The fourth proportional to 3,686.40, 5,525.10 and 2,516.40 is: 3,771.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,686.40 : 5,525.10 = 2,516.40 : x
  2. Step 2: Convert to fraction form
    3,686.40/5,525.10 = 2,516.40/x
  3. Step 3: Cross multiply
    3,686.40x = 5,525.10 × 2,516.40
  4. Step 4: Simplify right side
    3,686.40x = 13,903,361.64
  5. Step 5: Solve for x
    x = 13,903,361.64/3,686.40
  6. Step 6: Final answer
    x = 3,771.53

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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.