Home / 6,539.40-9,027.59-5,120.55

Finding the Fourth Proportional to 6,539.40, 9,027.59 and 5,120.55

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Solution

The fourth proportional to 6,539.40, 9,027.59 and 5,120.55 is: 7,068.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,539.40 : 9,027.59 = 5,120.55 : x
  2. Step 2: Convert to fraction form
    6,539.40/9,027.59 = 5,120.55/x
  3. Step 3: Cross multiply
    6,539.40x = 9,027.59 × 5,120.55
  4. Step 4: Simplify right side
    6,539.40x = 46,226,200.37
  5. Step 5: Solve for x
    x = 46,226,200.37/6,539.40
  6. Step 6: Final answer
    x = 7,068.87

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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.