Home / 1,130.22-1,558.44-1,084.86

Finding the Fourth Proportional to 1,130.22, 1,558.44 and 1,084.86

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Solution

The fourth proportional to 1,130.22, 1,558.44 and 1,084.86 is: 1,495.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130.22 : 1,558.44 = 1,084.86 : x
  2. Step 2: Convert to fraction form
    1,130.22/1,558.44 = 1,084.86/x
  3. Step 3: Cross multiply
    1,130.22x = 1,558.44 × 1,084.86
  4. Step 4: Simplify right side
    1,130.22x = 1,690,689.22
  5. Step 5: Solve for x
    x = 1,690,689.22/1,130.22
  6. Step 6: Final answer
    x = 1,495.89

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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.