Home / 7,782.15-10,739.51-4,245.35

Finding the Fourth Proportional to 7,782.15, 10,739.51 and 4,245.35

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Solution

The fourth proportional to 7,782.15, 10,739.51 and 4,245.35 is: 5,858.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,782.15 : 10,739.51 = 4,245.35 : x
  2. Step 2: Convert to fraction form
    7,782.15/10,739.51 = 4,245.35/x
  3. Step 3: Cross multiply
    7,782.15x = 10,739.51 × 4,245.35
  4. Step 4: Simplify right side
    7,782.15x = 45,592,978.78
  5. Step 5: Solve for x
    x = 45,592,978.78/7,782.15
  6. Step 6: Final answer
    x = 5,858.66

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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.