Home / 4,740.42-7,109.91-1,620.51

Finding the Fourth Proportional to 4,740.42, 7,109.91 and 1,620.51

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Solution

The fourth proportional to 4,740.42, 7,109.91 and 1,620.51 is: 2,430.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,740.42 : 7,109.91 = 1,620.51 : x
  2. Step 2: Convert to fraction form
    4,740.42/7,109.91 = 1,620.51/x
  3. Step 3: Cross multiply
    4,740.42x = 7,109.91 × 1,620.51
  4. Step 4: Simplify right side
    4,740.42x = 11,521,680.25
  5. Step 5: Solve for x
    x = 11,521,680.25/4,740.42
  6. Step 6: Final answer
    x = 2,430.52

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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.