Home / 1,525.96-2,286.90-1,319.68

Finding the Fourth Proportional to 1,525.96, 2,286.90 and 1,319.68

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Solution

The fourth proportional to 1,525.96, 2,286.90 and 1,319.68 is: 1,977.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.96 : 2,286.90 = 1,319.68 : x
  2. Step 2: Convert to fraction form
    1,525.96/2,286.90 = 1,319.68/x
  3. Step 3: Cross multiply
    1,525.96x = 2,286.90 × 1,319.68
  4. Step 4: Simplify right side
    1,525.96x = 3,017,976.19
  5. Step 5: Solve for x
    x = 3,017,976.19/1,525.96
  6. Step 6: Final answer
    x = 1,977.76

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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.