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Finding the Fourth Proportional to 4,813.19, 6,642.20 and 2,605.19

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Solution

The fourth proportional to 4,813.19, 6,642.20 and 2,605.19 is: 3,595.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,813.19 : 6,642.20 = 2,605.19 : x
  2. Step 2: Convert to fraction form
    4,813.19/6,642.20 = 2,605.19/x
  3. Step 3: Cross multiply
    4,813.19x = 6,642.20 × 2,605.19
  4. Step 4: Simplify right side
    4,813.19x = 17,304,193.02
  5. Step 5: Solve for x
    x = 17,304,193.02/4,813.19
  6. Step 6: Final answer
    x = 3,595.16

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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.