Home / 4,631.59-6,391.62-2,642.20

Finding the Fourth Proportional to 4,631.59, 6,391.62 and 2,642.20

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Solution

The fourth proportional to 4,631.59, 6,391.62 and 2,642.20 is: 3,646.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,631.59 : 6,391.62 = 2,642.20 : x
  2. Step 2: Convert to fraction form
    4,631.59/6,391.62 = 2,642.20/x
  3. Step 3: Cross multiply
    4,631.59x = 6,391.62 × 2,642.20
  4. Step 4: Simplify right side
    4,631.59x = 16,887,938.36
  5. Step 5: Solve for x
    x = 16,887,938.36/4,631.59
  6. Step 6: Final answer
    x = 3,646.25

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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.