Home / 1,548.50-2,130.59-1,338

Finding the Fourth Proportional to 1,548.50, 2,130.59 and 1,338

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Solution

The fourth proportional to 1,548.50, 2,130.59 and 1,338 is: 1,840.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,548.50 : 2,130.59 = 1,338 : x
  2. Step 2: Convert to fraction form
    1,548.50/2,130.59 = 1,338/x
  3. Step 3: Cross multiply
    1,548.50x = 2,130.59 × 1,338
  4. Step 4: Simplify right side
    1,548.50x = 2,850,722.73
  5. Step 5: Solve for x
    x = 2,850,722.73/1,548.50
  6. Step 6: Final answer
    x = 1,840.96

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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.