Home / 7,035.08-9,708.18-3,890.84

Finding the Fourth Proportional to 7,035.08, 9,708.18 and 3,890.84

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Solution

The fourth proportional to 7,035.08, 9,708.18 and 3,890.84 is: 5,369.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,035.08 : 9,708.18 = 3,890.84 : x
  2. Step 2: Convert to fraction form
    7,035.08/9,708.18 = 3,890.84/x
  3. Step 3: Cross multiply
    7,035.08x = 9,708.18 × 3,890.84
  4. Step 4: Simplify right side
    7,035.08x = 37,772,975.07
  5. Step 5: Solve for x
    x = 37,772,975.07/7,035.08
  6. Step 6: Final answer
    x = 5,369.23

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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.