Home / 7,779.45-10,735.80-4,422.39

Finding the Fourth Proportional to 7,779.45, 10,735.80 and 4,422.39

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Solution

The fourth proportional to 7,779.45, 10,735.80 and 4,422.39 is: 6,102.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.45 : 10,735.80 = 4,422.39 : x
  2. Step 2: Convert to fraction form
    7,779.45/10,735.80 = 4,422.39/x
  3. Step 3: Cross multiply
    7,779.45x = 10,735.80 × 4,422.39
  4. Step 4: Simplify right side
    7,779.45x = 47,477,894.56
  5. Step 5: Solve for x
    x = 47,477,894.56/7,779.45
  6. Step 6: Final answer
    x = 6,102.99

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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.