Home / 1,405.25-2,106.30-582.49

Finding the Fourth Proportional to 1,405.25, 2,106.30 and 582.49

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Solution

The fourth proportional to 1,405.25, 2,106.30 and 582.49 is: 873.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405.25 : 2,106.30 = 582.49 : x
  2. Step 2: Convert to fraction form
    1,405.25/2,106.30 = 582.49/x
  3. Step 3: Cross multiply
    1,405.25x = 2,106.30 × 582.49
  4. Step 4: Simplify right side
    1,405.25x = 1,226,903.50
  5. Step 5: Solve for x
    x = 1,226,903.50/1,405.25
  6. Step 6: Final answer
    x = 873.09

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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.