Home / 1,525.16-2,290.79-1,439.21

Finding the Fourth Proportional to 1,525.16, 2,290.79 and 1,439.21

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Solution

The fourth proportional to 1,525.16, 2,290.79 and 1,439.21 is: 2,161.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.16 : 2,290.79 = 1,439.21 : x
  2. Step 2: Convert to fraction form
    1,525.16/2,290.79 = 1,439.21/x
  3. Step 3: Cross multiply
    1,525.16x = 2,290.79 × 1,439.21
  4. Step 4: Simplify right side
    1,525.16x = 3,296,909.23
  5. Step 5: Solve for x
    x = 3,296,909.23/1,525.16
  6. Step 6: Final answer
    x = 2,161.69

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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.