Home / 2,905.12-4,355.04-1,055.44

Finding the Fourth Proportional to 2,905.12, 4,355.04 and 1,055.44

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Solution

The fourth proportional to 2,905.12, 4,355.04 and 1,055.44 is: 1,582.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.12 : 4,355.04 = 1,055.44 : x
  2. Step 2: Convert to fraction form
    2,905.12/4,355.04 = 1,055.44/x
  3. Step 3: Cross multiply
    2,905.12x = 4,355.04 × 1,055.44
  4. Step 4: Simplify right side
    2,905.12x = 4,596,483.42
  5. Step 5: Solve for x
    x = 4,596,483.42/2,905.12
  6. Step 6: Final answer
    x = 1,582.20

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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.