Home / 5,611.69-7,740.58-4,015.18

Finding the Fourth Proportional to 5,611.69, 7,740.58 and 4,015.18

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Solution

The fourth proportional to 5,611.69, 7,740.58 and 4,015.18 is: 5,538.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,611.69 : 7,740.58 = 4,015.18 : x
  2. Step 2: Convert to fraction form
    5,611.69/7,740.58 = 4,015.18/x
  3. Step 3: Cross multiply
    5,611.69x = 7,740.58 × 4,015.18
  4. Step 4: Simplify right side
    5,611.69x = 31,079,763.23
  5. Step 5: Solve for x
    x = 31,079,763.23/5,611.69
  6. Step 6: Final answer
    x = 5,538.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.