Home / 4,640.23-6,403.59-2,515.80

Finding the Fourth Proportional to 4,640.23, 6,403.59 and 2,515.80

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Solution

The fourth proportional to 4,640.23, 6,403.59 and 2,515.80 is: 3,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,640.23 : 6,403.59 = 2,515.80 : x
  2. Step 2: Convert to fraction form
    4,640.23/6,403.59 = 2,515.80/x
  3. Step 3: Cross multiply
    4,640.23x = 6,403.59 × 2,515.80
  4. Step 4: Simplify right side
    4,640.23x = 16,110,151.72
  5. Step 5: Solve for x
    x = 16,110,151.72/4,640.23
  6. Step 6: Final answer
    x = 3,471.84

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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.