Home / 1,110.03-1,665.45-525.21

Finding the Fourth Proportional to 1,110.03, 1,665.45 and 525.21

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Solution

The fourth proportional to 1,110.03, 1,665.45 and 525.21 is: 788.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.03 : 1,665.45 = 525.21 : x
  2. Step 2: Convert to fraction form
    1,110.03/1,665.45 = 525.21/x
  3. Step 3: Cross multiply
    1,110.03x = 1,665.45 × 525.21
  4. Step 4: Simplify right side
    1,110.03x = 874,710.99
  5. Step 5: Solve for x
    x = 874,710.99/1,110.03
  6. Step 6: Final answer
    x = 788.01

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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.