Home / 5,117.86-7,063.22-2,880.28

Finding the Fourth Proportional to 5,117.86, 7,063.22 and 2,880.28

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Solution

The fourth proportional to 5,117.86, 7,063.22 and 2,880.28 is: 3,975.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,117.86 : 7,063.22 = 2,880.28 : x
  2. Step 2: Convert to fraction form
    5,117.86/7,063.22 = 2,880.28/x
  3. Step 3: Cross multiply
    5,117.86x = 7,063.22 × 2,880.28
  4. Step 4: Simplify right side
    5,117.86x = 20,344,051.30
  5. Step 5: Solve for x
    x = 20,344,051.30/5,117.86
  6. Step 6: Final answer
    x = 3,975.11

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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.