Home / 3,430.69-4,734.35-1,858.78

Finding the Fourth Proportional to 3,430.69, 4,734.35 and 1,858.78

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Solution

The fourth proportional to 3,430.69, 4,734.35 and 1,858.78 is: 2,565.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.69 : 4,734.35 = 1,858.78 : x
  2. Step 2: Convert to fraction form
    3,430.69/4,734.35 = 1,858.78/x
  3. Step 3: Cross multiply
    3,430.69x = 4,734.35 × 1,858.78
  4. Step 4: Simplify right side
    3,430.69x = 8,800,118.69
  5. Step 5: Solve for x
    x = 8,800,118.69/3,430.69
  6. Step 6: Final answer
    x = 2,565.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.