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Finding the Fourth Proportional to 3,000.04, 4,499.74 and 920.06

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Solution

The fourth proportional to 3,000.04, 4,499.74 and 920.06 is: 1,379.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,000.04 : 4,499.74 = 920.06 : x
  2. Step 2: Convert to fraction form
    3,000.04/4,499.74 = 920.06/x
  3. Step 3: Cross multiply
    3,000.04x = 4,499.74 × 920.06
  4. Step 4: Simplify right side
    3,000.04x = 4,140,030.78
  5. Step 5: Solve for x
    x = 4,140,030.78/3,000.04
  6. Step 6: Final answer
    x = 1,379.99

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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.