Home / 7,430.40-11,141.55-3,042.90

Finding the Fourth Proportional to 7,430.40, 11,141.55 and 3,042.90

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Solution

The fourth proportional to 7,430.40, 11,141.55 and 3,042.90 is: 4,562.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,430.40 : 11,141.55 = 3,042.90 : x
  2. Step 2: Convert to fraction form
    7,430.40/11,141.55 = 3,042.90/x
  3. Step 3: Cross multiply
    7,430.40x = 11,141.55 × 3,042.90
  4. Step 4: Simplify right side
    7,430.40x = 33,902,622.50
  5. Step 5: Solve for x
    x = 33,902,622.50/7,430.40
  6. Step 6: Final answer
    x = 4,562.69

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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.