Home / 5,126.63-7,074.75-2,768.77

Finding the Fourth Proportional to 5,126.63, 7,074.75 and 2,768.77

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Solution

The fourth proportional to 5,126.63, 7,074.75 and 2,768.77 is: 3,820.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,126.63 : 7,074.75 = 2,768.77 : x
  2. Step 2: Convert to fraction form
    5,126.63/7,074.75 = 2,768.77/x
  3. Step 3: Cross multiply
    5,126.63x = 7,074.75 × 2,768.77
  4. Step 4: Simplify right side
    5,126.63x = 19,588,341.71
  5. Step 5: Solve for x
    x = 19,588,341.71/5,126.63
  6. Step 6: Final answer
    x = 3,820.90

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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.