Home / 1,989.02-2,984.73-1,579.58

Finding the Fourth Proportional to 1,989.02, 2,984.73 and 1,579.58

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Solution

The fourth proportional to 1,989.02, 2,984.73 and 1,579.58 is: 2,370.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989.02 : 2,984.73 = 1,579.58 : x
  2. Step 2: Convert to fraction form
    1,989.02/2,984.73 = 1,579.58/x
  3. Step 3: Cross multiply
    1,989.02x = 2,984.73 × 1,579.58
  4. Step 4: Simplify right side
    1,989.02x = 4,714,619.81
  5. Step 5: Solve for x
    x = 4,714,619.81/1,989.02
  6. Step 6: Final answer
    x = 2,370.32

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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.