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Finding the Fourth Proportional to 2,642.58, 3,646.87 and 1,463.65

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Solution

The fourth proportional to 2,642.58, 3,646.87 and 1,463.65 is: 2,019.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,642.58 : 3,646.87 = 1,463.65 : x
  2. Step 2: Convert to fraction form
    2,642.58/3,646.87 = 1,463.65/x
  3. Step 3: Cross multiply
    2,642.58x = 3,646.87 × 1,463.65
  4. Step 4: Simplify right side
    2,642.58x = 5,337,741.28
  5. Step 5: Solve for x
    x = 5,337,741.28/2,642.58
  6. Step 6: Final answer
    x = 2,019.90

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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.