Home / 6,400.80-9,588.74-3,619.06

Finding the Fourth Proportional to 6,400.80, 9,588.74 and 3,619.06

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Solution

The fourth proportional to 6,400.80, 9,588.74 and 3,619.06 is: 5,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,400.80 : 9,588.74 = 3,619.06 : x
  2. Step 2: Convert to fraction form
    6,400.80/9,588.74 = 3,619.06/x
  3. Step 3: Cross multiply
    6,400.80x = 9,588.74 × 3,619.06
  4. Step 4: Simplify right side
    6,400.80x = 34,702,225.38
  5. Step 5: Solve for x
    x = 34,702,225.38/6,400.80
  6. Step 6: Final answer
    x = 5,421.55

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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.