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Finding the Fourth Proportional to 2,870.02, 4,305.03 and 922.39

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Solution

The fourth proportional to 2,870.02, 4,305.03 and 922.39 is: 1,383.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,870.02 : 4,305.03 = 922.39 : x
  2. Step 2: Convert to fraction form
    2,870.02/4,305.03 = 922.39/x
  3. Step 3: Cross multiply
    2,870.02x = 4,305.03 × 922.39
  4. Step 4: Simplify right side
    2,870.02x = 3,970,916.62
  5. Step 5: Solve for x
    x = 3,970,916.62/2,870.02
  6. Step 6: Final answer
    x = 1,383.59

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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.