Home / 7,779.80-10,735.71-4,422.15

Finding the Fourth Proportional to 7,779.80, 10,735.71 and 4,422.15

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Solution

The fourth proportional to 7,779.80, 10,735.71 and 4,422.15 is: 6,102.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.80 : 10,735.71 = 4,422.15 : x
  2. Step 2: Convert to fraction form
    7,779.80/10,735.71 = 4,422.15/x
  3. Step 3: Cross multiply
    7,779.80x = 10,735.71 × 4,422.15
  4. Step 4: Simplify right side
    7,779.80x = 47,474,897.87
  5. Step 5: Solve for x
    x = 47,474,897.87/7,779.80
  6. Step 6: Final answer
    x = 6,102.33

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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.