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Finding the Fourth Proportional to 3,668.92, 5,061.86 and 2,075.40

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Solution

The fourth proportional to 3,668.92, 5,061.86 and 2,075.40 is: 2,863.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,668.92 : 5,061.86 = 2,075.40 : x
  2. Step 2: Convert to fraction form
    3,668.92/5,061.86 = 2,075.40/x
  3. Step 3: Cross multiply
    3,668.92x = 5,061.86 × 2,075.40
  4. Step 4: Simplify right side
    3,668.92x = 10,505,384.24
  5. Step 5: Solve for x
    x = 10,505,384.24/3,668.92
  6. Step 6: Final answer
    x = 2,863.35

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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.