Home / 2,905.79-4,357.31-1,055.60

Finding the Fourth Proportional to 2,905.79, 4,357.31 and 1,055.60

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Solution

The fourth proportional to 2,905.79, 4,357.31 and 1,055.60 is: 1,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,905.79 : 4,357.31 = 1,055.60 : x
  2. Step 2: Convert to fraction form
    2,905.79/4,357.31 = 1,055.60/x
  3. Step 3: Cross multiply
    2,905.79x = 4,357.31 × 1,055.60
  4. Step 4: Simplify right side
    2,905.79x = 4,599,565.71
  5. Step 5: Solve for x
    x = 4,599,565.71/2,905.79
  6. Step 6: Final answer
    x = 1,582.90

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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.