Home / 1,536.60-2,105.74-1,388.98

Finding the Fourth Proportional to 1,536.60, 2,105.74 and 1,388.98

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Solution

The fourth proportional to 1,536.60, 2,105.74 and 1,388.98 is: 1,903.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536.60 : 2,105.74 = 1,388.98 : x
  2. Step 2: Convert to fraction form
    1,536.60/2,105.74 = 1,388.98/x
  3. Step 3: Cross multiply
    1,536.60x = 2,105.74 × 1,388.98
  4. Step 4: Simplify right side
    1,536.60x = 2,924,823.80
  5. Step 5: Solve for x
    x = 2,924,823.80/1,536.60
  6. Step 6: Final answer
    x = 1,903.44

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.