Home / 4,631.65-6,390.77-2,642.15

Finding the Fourth Proportional to 4,631.65, 6,390.77 and 2,642.15

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Solution

The fourth proportional to 4,631.65, 6,390.77 and 2,642.15 is: 3,645.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.65 : 6,390.77 = 2,642.15 : x
  2. Step 2: Convert to fraction form
    4,631.65/6,390.77 = 2,642.15/x
  3. Step 3: Cross multiply
    4,631.65x = 6,390.77 × 2,642.15
  4. Step 4: Simplify right side
    4,631.65x = 16,885,375.72
  5. Step 5: Solve for x
    x = 16,885,375.72/4,631.65
  6. Step 6: Final answer
    x = 3,645.65

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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.