Home / 7,186.56-10,779.71-3,920.45

Finding the Fourth Proportional to 7,186.56, 10,779.71 and 3,920.45

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Solution

The fourth proportional to 7,186.56, 10,779.71 and 3,920.45 is: 5,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,186.56 : 10,779.71 = 3,920.45 : x
  2. Step 2: Convert to fraction form
    7,186.56/10,779.71 = 3,920.45/x
  3. Step 3: Cross multiply
    7,186.56x = 10,779.71 × 3,920.45
  4. Step 4: Simplify right side
    7,186.56x = 42,261,240.57
  5. Step 5: Solve for x
    x = 42,261,240.57/7,186.56
  6. Step 6: Final answer
    x = 5,880.59

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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.