Home / 1,325.60-1,985.52-1,108.52

Finding the Fourth Proportional to 1,325.60, 1,985.52 and 1,108.52

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Solution

The fourth proportional to 1,325.60, 1,985.52 and 1,108.52 is: 1,660.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325.60 : 1,985.52 = 1,108.52 : x
  2. Step 2: Convert to fraction form
    1,325.60/1,985.52 = 1,108.52/x
  3. Step 3: Cross multiply
    1,325.60x = 1,985.52 × 1,108.52
  4. Step 4: Simplify right side
    1,325.60x = 2,200,988.63
  5. Step 5: Solve for x
    x = 2,200,988.63/1,325.60
  6. Step 6: Final answer
    x = 1,660.37

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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.