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Finding the Fourth Proportional to 1,534.26, 2,301.37 and 380

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Solution

The fourth proportional to 1,534.26, 2,301.37 and 380 is: 570.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,534.26 : 2,301.37 = 380 : x
  2. Step 2: Convert to fraction form
    1,534.26/2,301.37 = 380/x
  3. Step 3: Cross multiply
    1,534.26x = 2,301.37 × 380
  4. Step 4: Simplify right side
    1,534.26x = 874,520.60
  5. Step 5: Solve for x
    x = 874,520.60/1,534.26
  6. Step 6: Final answer
    x = 570.00

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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.