Home / 1,835.79-2,534.70-1,128.58

Finding the Fourth Proportional to 1,835.79, 2,534.70 and 1,128.58

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Solution

The fourth proportional to 1,835.79, 2,534.70 and 1,128.58 is: 1,558.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835.79 : 2,534.70 = 1,128.58 : x
  2. Step 2: Convert to fraction form
    1,835.79/2,534.70 = 1,128.58/x
  3. Step 3: Cross multiply
    1,835.79x = 2,534.70 × 1,128.58
  4. Step 4: Simplify right side
    1,835.79x = 2,860,611.60
  5. Step 5: Solve for x
    x = 2,860,611.60/1,835.79
  6. Step 6: Final answer
    x = 1,558.25

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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.