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Finding the Fourth Proportional to 3,465.45, 4,782.12 and 1,973.38

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Solution

The fourth proportional to 3,465.45, 4,782.12 and 1,973.38 is: 2,723.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.45 : 4,782.12 = 1,973.38 : x
  2. Step 2: Convert to fraction form
    3,465.45/4,782.12 = 1,973.38/x
  3. Step 3: Cross multiply
    3,465.45x = 4,782.12 × 1,973.38
  4. Step 4: Simplify right side
    3,465.45x = 9,436,916.06
  5. Step 5: Solve for x
    x = 9,436,916.06/3,465.45
  6. Step 6: Final answer
    x = 2,723.15

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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.