Home / 7,480.61-10,319.76-4,790.55

Finding the Fourth Proportional to 7,480.61, 10,319.76 and 4,790.55

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Solution

The fourth proportional to 7,480.61, 10,319.76 and 4,790.55 is: 6,608.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,480.61 : 10,319.76 = 4,790.55 : x
  2. Step 2: Convert to fraction form
    7,480.61/10,319.76 = 4,790.55/x
  3. Step 3: Cross multiply
    7,480.61x = 10,319.76 × 4,790.55
  4. Step 4: Simplify right side
    7,480.61x = 49,437,326.27
  5. Step 5: Solve for x
    x = 49,437,326.27/7,480.61
  6. Step 6: Final answer
    x = 6,608.73

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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.