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Finding the Fourth Proportional to 2,992.62, 4,130.08 and 1,666.62

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Solution

The fourth proportional to 2,992.62, 4,130.08 and 1,666.62 is: 2,300.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,992.62 : 4,130.08 = 1,666.62 : x
  2. Step 2: Convert to fraction form
    2,992.62/4,130.08 = 1,666.62/x
  3. Step 3: Cross multiply
    2,992.62x = 4,130.08 × 1,666.62
  4. Step 4: Simplify right side
    2,992.62x = 6,883,273.93
  5. Step 5: Solve for x
    x = 6,883,273.93/2,992.62
  6. Step 6: Final answer
    x = 2,300.08

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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.