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Finding the Fourth Proportional to 3,955.32, 5,929.07 and 1,871.64

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Solution

The fourth proportional to 3,955.32, 5,929.07 and 1,871.64 is: 2,805.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,955.32 : 5,929.07 = 1,871.64 : x
  2. Step 2: Convert to fraction form
    3,955.32/5,929.07 = 1,871.64/x
  3. Step 3: Cross multiply
    3,955.32x = 5,929.07 × 1,871.64
  4. Step 4: Simplify right side
    3,955.32x = 11,097,075.22
  5. Step 5: Solve for x
    x = 11,097,075.22/3,955.32
  6. Step 6: Final answer
    x = 2,805.61

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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.