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Finding the Fourth Proportional to 1,885.43, 2,807.03 and 1,876.31

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Solution

The fourth proportional to 1,885.43, 2,807.03 and 1,876.31 is: 2,793.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,885.43 : 2,807.03 = 1,876.31 : x
  2. Step 2: Convert to fraction form
    1,885.43/2,807.03 = 1,876.31/x
  3. Step 3: Cross multiply
    1,885.43x = 2,807.03 × 1,876.31
  4. Step 4: Simplify right side
    1,885.43x = 5,266,858.46
  5. Step 5: Solve for x
    x = 5,266,858.46/1,885.43
  6. Step 6: Final answer
    x = 2,793.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.