Home / 5,509.85-7,603.43-2,991.92

Finding the Fourth Proportional to 5,509.85, 7,603.43 and 2,991.92

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Solution

The fourth proportional to 5,509.85, 7,603.43 and 2,991.92 is: 4,128.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.85 : 7,603.43 = 2,991.92 : x
  2. Step 2: Convert to fraction form
    5,509.85/7,603.43 = 2,991.92/x
  3. Step 3: Cross multiply
    5,509.85x = 7,603.43 × 2,991.92
  4. Step 4: Simplify right side
    5,509.85x = 22,748,809.72
  5. Step 5: Solve for x
    x = 22,748,809.72/5,509.85
  6. Step 6: Final answer
    x = 4,128.75

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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.