Home / 3,971.50-5,477.63-2,476.64

Finding the Fourth Proportional to 3,971.50, 5,477.63 and 2,476.64

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Solution

The fourth proportional to 3,971.50, 5,477.63 and 2,476.64 is: 3,415.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,971.50 : 5,477.63 = 2,476.64 : x
  2. Step 2: Convert to fraction form
    3,971.50/5,477.63 = 2,476.64/x
  3. Step 3: Cross multiply
    3,971.50x = 5,477.63 × 2,476.64
  4. Step 4: Simplify right side
    3,971.50x = 13,566,118.87
  5. Step 5: Solve for x
    x = 13,566,118.87/3,971.50
  6. Step 6: Final answer
    x = 3,415.87

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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.