Home / 3,683.07-5,087.61-3,420.63

Finding the Fourth Proportional to 3,683.07, 5,087.61 and 3,420.63

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Solution

The fourth proportional to 3,683.07, 5,087.61 and 3,420.63 is: 4,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,683.07 : 5,087.61 = 3,420.63 : x
  2. Step 2: Convert to fraction form
    3,683.07/5,087.61 = 3,420.63/x
  3. Step 3: Cross multiply
    3,683.07x = 5,087.61 × 3,420.63
  4. Step 4: Simplify right side
    3,683.07x = 17,402,831.39
  5. Step 5: Solve for x
    x = 17,402,831.39/3,683.07
  6. Step 6: Final answer
    x = 4,725.09

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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.