Home / 1,525.80-2,290.60-1,518.80

Finding the Fourth Proportional to 1,525.80, 2,290.60 and 1,518.80

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Solution

The fourth proportional to 1,525.80, 2,290.60 and 1,518.80 is: 2,280.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,525.80 : 2,290.60 = 1,518.80 : x
  2. Step 2: Convert to fraction form
    1,525.80/2,290.60 = 1,518.80/x
  3. Step 3: Cross multiply
    1,525.80x = 2,290.60 × 1,518.80
  4. Step 4: Simplify right side
    1,525.80x = 3,478,963.28
  5. Step 5: Solve for x
    x = 3,478,963.28/1,525.80
  6. Step 6: Final answer
    x = 2,280.09

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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.