Home / 1,575.99-2,365.20-1,089.38

Finding the Fourth Proportional to 1,575.99, 2,365.20 and 1,089.38

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Solution

The fourth proportional to 1,575.99, 2,365.20 and 1,089.38 is: 1,634.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,575.99 : 2,365.20 = 1,089.38 : x
  2. Step 2: Convert to fraction form
    1,575.99/2,365.20 = 1,089.38/x
  3. Step 3: Cross multiply
    1,575.99x = 2,365.20 × 1,089.38
  4. Step 4: Simplify right side
    1,575.99x = 2,576,607.49
  5. Step 5: Solve for x
    x = 2,576,607.49/1,575.99
  6. Step 6: Final answer
    x = 1,634.91

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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.