Home / 5,509.60-7,603.28-3,151.84

Finding the Fourth Proportional to 5,509.60, 7,603.28 and 3,151.84

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Solution

The fourth proportional to 5,509.60, 7,603.28 and 3,151.84 is: 4,349.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,509.60 : 7,603.28 = 3,151.84 : x
  2. Step 2: Convert to fraction form
    5,509.60/7,603.28 = 3,151.84/x
  3. Step 3: Cross multiply
    5,509.60x = 7,603.28 × 3,151.84
  4. Step 4: Simplify right side
    5,509.60x = 23,964,322.04
  5. Step 5: Solve for x
    x = 23,964,322.04/5,509.60
  6. Step 6: Final answer
    x = 4,349.56

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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.