Home / 3,615.16-5,415.74-2,378.84

Finding the Fourth Proportional to 3,615.16, 5,415.74 and 2,378.84

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Solution

The fourth proportional to 3,615.16, 5,415.74 and 2,378.84 is: 3,563.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,615.16 : 5,415.74 = 2,378.84 : x
  2. Step 2: Convert to fraction form
    3,615.16/5,415.74 = 2,378.84/x
  3. Step 3: Cross multiply
    3,615.16x = 5,415.74 × 2,378.84
  4. Step 4: Simplify right side
    3,615.16x = 12,883,178.94
  5. Step 5: Solve for x
    x = 12,883,178.94/3,615.16
  6. Step 6: Final answer
    x = 3,563.65

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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.