Home / 4,120.15-5,685.84-2,303.18

Finding the Fourth Proportional to 4,120.15, 5,685.84 and 2,303.18

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Solution

The fourth proportional to 4,120.15, 5,685.84 and 2,303.18 is: 3,178.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,120.15 : 5,685.84 = 2,303.18 : x
  2. Step 2: Convert to fraction form
    4,120.15/5,685.84 = 2,303.18/x
  3. Step 3: Cross multiply
    4,120.15x = 5,685.84 × 2,303.18
  4. Step 4: Simplify right side
    4,120.15x = 13,095,512.97
  5. Step 5: Solve for x
    x = 13,095,512.97/4,120.15
  6. Step 6: Final answer
    x = 3,178.41

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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.