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Finding the Fourth Proportional to 3,465.88, 4,782.90 and 1,894

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Solution

The fourth proportional to 3,465.88, 4,782.90 and 1,894 is: 2,613.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,465.88 : 4,782.90 = 1,894 : x
  2. Step 2: Convert to fraction form
    3,465.88/4,782.90 = 1,894/x
  3. Step 3: Cross multiply
    3,465.88x = 4,782.90 × 1,894
  4. Step 4: Simplify right side
    3,465.88x = 9,058,812.60
  5. Step 5: Solve for x
    x = 9,058,812.60/3,465.88
  6. Step 6: Final answer
    x = 2,613.71

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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.