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Finding the Fourth Proportional to 2,905.02, 4,358.75 and 957.42

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Solution

The fourth proportional to 2,905.02, 4,358.75 and 957.42 is: 1,436.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.02 : 4,358.75 = 957.42 : x
  2. Step 2: Convert to fraction form
    2,905.02/4,358.75 = 957.42/x
  3. Step 3: Cross multiply
    2,905.02x = 4,358.75 × 957.42
  4. Step 4: Simplify right side
    2,905.02x = 4,173,149.64
  5. Step 5: Solve for x
    x = 4,173,149.64/2,905.02
  6. Step 6: Final answer
    x = 1,436.53

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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.