Home / 1,582.02-2,181.47-1,109.75

Finding the Fourth Proportional to 1,582.02, 2,181.47 and 1,109.75

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Solution

The fourth proportional to 1,582.02, 2,181.47 and 1,109.75 is: 1,530.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,582.02 : 2,181.47 = 1,109.75 : x
  2. Step 2: Convert to fraction form
    1,582.02/2,181.47 = 1,109.75/x
  3. Step 3: Cross multiply
    1,582.02x = 2,181.47 × 1,109.75
  4. Step 4: Simplify right side
    1,582.02x = 2,420,869.88
  5. Step 5: Solve for x
    x = 2,420,869.88/1,582.02
  6. Step 6: Final answer
    x = 1,530.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.