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Finding the Fourth Proportional to 3,160.04, 4,739.24 and 938.35

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Solution

The fourth proportional to 3,160.04, 4,739.24 and 938.35 is: 1,407.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,160.04 : 4,739.24 = 938.35 : x
  2. Step 2: Convert to fraction form
    3,160.04/4,739.24 = 938.35/x
  3. Step 3: Cross multiply
    3,160.04x = 4,739.24 × 938.35
  4. Step 4: Simplify right side
    3,160.04x = 4,447,065.85
  5. Step 5: Solve for x
    x = 4,447,065.85/3,160.04
  6. Step 6: Final answer
    x = 1,407.28

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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.