Home / 6,859.16-9,465.64-3,874.86

Finding the Fourth Proportional to 6,859.16, 9,465.64 and 3,874.86

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Solution

The fourth proportional to 6,859.16, 9,465.64 and 3,874.86 is: 5,347.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,859.16 : 9,465.64 = 3,874.86 : x
  2. Step 2: Convert to fraction form
    6,859.16/9,465.64 = 3,874.86/x
  3. Step 3: Cross multiply
    6,859.16x = 9,465.64 × 3,874.86
  4. Step 4: Simplify right side
    6,859.16x = 36,678,029.81
  5. Step 5: Solve for x
    x = 36,678,029.81/6,859.16
  6. Step 6: Final answer
    x = 5,347.31

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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.