Home / 4,740.23-7,110.78-1,230.23

Finding the Fourth Proportional to 4,740.23, 7,110.78 and 1,230.23

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Solution

The fourth proportional to 4,740.23, 7,110.78 and 1,230.23 is: 1,845.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.23 : 7,110.78 = 1,230.23 : x
  2. Step 2: Convert to fraction form
    4,740.23/7,110.78 = 1,230.23/x
  3. Step 3: Cross multiply
    4,740.23x = 7,110.78 × 1,230.23
  4. Step 4: Simplify right side
    4,740.23x = 8,747,894.88
  5. Step 5: Solve for x
    x = 8,747,894.88/4,740.23
  6. Step 6: Final answer
    x = 1,845.46

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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.