Home / 3,899.86-5,849.79-1,126.93

Finding the Fourth Proportional to 3,899.86, 5,849.79 and 1,126.93

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Solution

The fourth proportional to 3,899.86, 5,849.79 and 1,126.93 is: 1,690.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,899.86 : 5,849.79 = 1,126.93 : x
  2. Step 2: Convert to fraction form
    3,899.86/5,849.79 = 1,126.93/x
  3. Step 3: Cross multiply
    3,899.86x = 5,849.79 × 1,126.93
  4. Step 4: Simplify right side
    3,899.86x = 6,592,303.84
  5. Step 5: Solve for x
    x = 6,592,303.84/3,899.86
  6. Step 6: Final answer
    x = 1,690.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.