Home / 2,820.32-4,230-1,088.96

Finding the Fourth Proportional to 2,820.32, 4,230 and 1,088.96

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Solution

The fourth proportional to 2,820.32, 4,230 and 1,088.96 is: 1,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,820.32 : 4,230 = 1,088.96 : x
  2. Step 2: Convert to fraction form
    2,820.32/4,230 = 1,088.96/x
  3. Step 3: Cross multiply
    2,820.32x = 4,230 × 1,088.96
  4. Step 4: Simplify right side
    2,820.32x = 4,606,300.80
  5. Step 5: Solve for x
    x = 4,606,300.80/2,820.32
  6. Step 6: Final answer
    x = 1,633.25

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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.