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Finding the Fourth Proportional to 3,643.57, 5,463.95 and 1,303.13

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Solution

The fourth proportional to 3,643.57, 5,463.95 and 1,303.13 is: 1,954.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,643.57 : 5,463.95 = 1,303.13 : x
  2. Step 2: Convert to fraction form
    3,643.57/5,463.95 = 1,303.13/x
  3. Step 3: Cross multiply
    3,643.57x = 5,463.95 × 1,303.13
  4. Step 4: Simplify right side
    3,643.57x = 7,120,237.16
  5. Step 5: Solve for x
    x = 7,120,237.16/3,643.57
  6. Step 6: Final answer
    x = 1,954.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.