Home / 7,628.80-10,523.20-4,484.32

Finding the Fourth Proportional to 7,628.80, 10,523.20 and 4,484.32

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Solution

The fourth proportional to 7,628.80, 10,523.20 and 4,484.32 is: 6,185.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.80 : 10,523.20 = 4,484.32 : x
  2. Step 2: Convert to fraction form
    7,628.80/10,523.20 = 4,484.32/x
  3. Step 3: Cross multiply
    7,628.80x = 10,523.20 × 4,484.32
  4. Step 4: Simplify right side
    7,628.80x = 47,189,396.22
  5. Step 5: Solve for x
    x = 47,189,396.22/7,628.80
  6. Step 6: Final answer
    x = 6,185.69

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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.