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Finding the Fourth Proportional to 2,852.66, 3,931.96 and 1,908.10

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Solution

The fourth proportional to 2,852.66, 3,931.96 and 1,908.10 is: 2,630.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,852.66 : 3,931.96 = 1,908.10 : x
  2. Step 2: Convert to fraction form
    2,852.66/3,931.96 = 1,908.10/x
  3. Step 3: Cross multiply
    2,852.66x = 3,931.96 × 1,908.10
  4. Step 4: Simplify right side
    2,852.66x = 7,502,572.88
  5. Step 5: Solve for x
    x = 7,502,572.88/2,852.66
  6. Step 6: Final answer
    x = 2,630.03

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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.