Home / 5,124.45-7,072.43-2,886.77

Finding the Fourth Proportional to 5,124.45, 7,072.43 and 2,886.77

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Solution

The fourth proportional to 5,124.45, 7,072.43 and 2,886.77 is: 3,984.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,124.45 : 7,072.43 = 2,886.77 : x
  2. Step 2: Convert to fraction form
    5,124.45/7,072.43 = 2,886.77/x
  3. Step 3: Cross multiply
    5,124.45x = 7,072.43 × 2,886.77
  4. Step 4: Simplify right side
    5,124.45x = 20,416,482.00
  5. Step 5: Solve for x
    x = 20,416,482.00/5,124.45
  6. Step 6: Final answer
    x = 3,984.13

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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.