Home / 5,272.51-7,907.55-3,639.55

Finding the Fourth Proportional to 5,272.51, 7,907.55 and 3,639.55

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Solution

The fourth proportional to 5,272.51, 7,907.55 and 3,639.55 is: 5,458.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,272.51 : 7,907.55 = 3,639.55 : x
  2. Step 2: Convert to fraction form
    5,272.51/7,907.55 = 3,639.55/x
  3. Step 3: Cross multiply
    5,272.51x = 7,907.55 × 3,639.55
  4. Step 4: Simplify right side
    5,272.51x = 28,779,923.60
  5. Step 5: Solve for x
    x = 28,779,923.60/5,272.51
  6. Step 6: Final answer
    x = 5,458.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.