Home / 2,904.08-4,346.40-1,809.20

Finding the Fourth Proportional to 2,904.08, 4,346.40 and 1,809.20

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Solution

The fourth proportional to 2,904.08, 4,346.40 and 1,809.20 is: 2,707.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,904.08 : 4,346.40 = 1,809.20 : x
  2. Step 2: Convert to fraction form
    2,904.08/4,346.40 = 1,809.20/x
  3. Step 3: Cross multiply
    2,904.08x = 4,346.40 × 1,809.20
  4. Step 4: Simplify right side
    2,904.08x = 7,863,506.88
  5. Step 5: Solve for x
    x = 7,863,506.88/2,904.08
  6. Step 6: Final answer
    x = 2,707.74

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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.