Home / 5,788.48-7,986.72-3,430.21

Finding the Fourth Proportional to 5,788.48, 7,986.72 and 3,430.21

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Solution

The fourth proportional to 5,788.48, 7,986.72 and 3,430.21 is: 4,732.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,788.48 : 7,986.72 = 3,430.21 : x
  2. Step 2: Convert to fraction form
    5,788.48/7,986.72 = 3,430.21/x
  3. Step 3: Cross multiply
    5,788.48x = 7,986.72 × 3,430.21
  4. Step 4: Simplify right side
    5,788.48x = 27,396,126.81
  5. Step 5: Solve for x
    x = 27,396,126.81/5,788.48
  6. Step 6: Final answer
    x = 4,732.87

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1.5x scale

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.