Home / 4,320.12-6,482.01-2,128.86

Finding the Fourth Proportional to 4,320.12, 6,482.01 and 2,128.86

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Solution

The fourth proportional to 4,320.12, 6,482.01 and 2,128.86 is: 3,194.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,320.12 : 6,482.01 = 2,128.86 : x
  2. Step 2: Convert to fraction form
    4,320.12/6,482.01 = 2,128.86/x
  3. Step 3: Cross multiply
    4,320.12x = 6,482.01 × 2,128.86
  4. Step 4: Simplify right side
    4,320.12x = 13,799,291.81
  5. Step 5: Solve for x
    x = 13,799,291.81/4,320.12
  6. Step 6: Final answer
    x = 3,194.19

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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.