Home / 7,779.09-10,735.41-4,242.45

Finding the Fourth Proportional to 7,779.09, 10,735.41 and 4,242.45

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Solution

The fourth proportional to 7,779.09, 10,735.41 and 4,242.45 is: 5,854.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,779.09 : 10,735.41 = 4,242.45 : x
  2. Step 2: Convert to fraction form
    7,779.09/10,735.41 = 4,242.45/x
  3. Step 3: Cross multiply
    7,779.09x = 10,735.41 × 4,242.45
  4. Step 4: Simplify right side
    7,779.09x = 45,544,440.15
  5. Step 5: Solve for x
    x = 45,544,440.15/7,779.09
  6. Step 6: Final answer
    x = 5,854.73

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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.