Home / 4,115.48-5,685.81-2,698.63

Finding the Fourth Proportional to 4,115.48, 5,685.81 and 2,698.63

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Solution

The fourth proportional to 4,115.48, 5,685.81 and 2,698.63 is: 3,728.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,115.48 : 5,685.81 = 2,698.63 : x
  2. Step 2: Convert to fraction form
    4,115.48/5,685.81 = 2,698.63/x
  3. Step 3: Cross multiply
    4,115.48x = 5,685.81 × 2,698.63
  4. Step 4: Simplify right side
    4,115.48x = 15,343,920.27
  5. Step 5: Solve for x
    x = 15,343,920.27/4,115.48
  6. Step 6: Final answer
    x = 3,728.35

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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.