Home / 1,695.21-2,538.75-1,076.98

Finding the Fourth Proportional to 1,695.21, 2,538.75 and 1,076.98

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Solution

The fourth proportional to 1,695.21, 2,538.75 and 1,076.98 is: 1,612.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,695.21 : 2,538.75 = 1,076.98 : x
  2. Step 2: Convert to fraction form
    1,695.21/2,538.75 = 1,076.98/x
  3. Step 3: Cross multiply
    1,695.21x = 2,538.75 × 1,076.98
  4. Step 4: Simplify right side
    1,695.21x = 2,734,182.98
  5. Step 5: Solve for x
    x = 2,734,182.98/1,695.21
  6. Step 6: Final answer
    x = 1,612.89

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1.5x scale

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.