Home / 5,509.57-7,603.18-3,151.75

Finding the Fourth Proportional to 5,509.57, 7,603.18 and 3,151.75

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Solution

The fourth proportional to 5,509.57, 7,603.18 and 3,151.75 is: 4,349.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.57 : 7,603.18 = 3,151.75 : x
  2. Step 2: Convert to fraction form
    5,509.57/7,603.18 = 3,151.75/x
  3. Step 3: Cross multiply
    5,509.57x = 7,603.18 × 3,151.75
  4. Step 4: Simplify right side
    5,509.57x = 23,963,322.57
  5. Step 5: Solve for x
    x = 23,963,322.57/5,509.57
  6. Step 6: Final answer
    x = 4,349.40

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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.