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Finding the Fourth Proportional to 2,900.66, 4,348.13 and 1,857.69

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Solution

The fourth proportional to 2,900.66, 4,348.13 and 1,857.69 is: 2,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,900.66 : 4,348.13 = 1,857.69 : x
  2. Step 2: Convert to fraction form
    2,900.66/4,348.13 = 1,857.69/x
  3. Step 3: Cross multiply
    2,900.66x = 4,348.13 × 1,857.69
  4. Step 4: Simplify right side
    2,900.66x = 8,077,468.33
  5. Step 5: Solve for x
    x = 8,077,468.33/2,900.66
  6. Step 6: Final answer
    x = 2,784.70

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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.