Home / 1,558.60-2,334.15-1,009.21

Finding the Fourth Proportional to 1,558.60, 2,334.15 and 1,009.21

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Solution

The fourth proportional to 1,558.60, 2,334.15 and 1,009.21 is: 1,511.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,558.60 : 2,334.15 = 1,009.21 : x
  2. Step 2: Convert to fraction form
    1,558.60/2,334.15 = 1,009.21/x
  3. Step 3: Cross multiply
    1,558.60x = 2,334.15 × 1,009.21
  4. Step 4: Simplify right side
    1,558.60x = 2,355,647.52
  5. Step 5: Solve for x
    x = 2,355,647.52/1,558.60
  6. Step 6: Final answer
    x = 1,511.39

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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.