Home / 1,110.83-1,664.73-525.74

Finding the Fourth Proportional to 1,110.83, 1,664.73 and 525.74

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Solution

The fourth proportional to 1,110.83, 1,664.73 and 525.74 is: 787.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,110.83 : 1,664.73 = 525.74 : x
  2. Step 2: Convert to fraction form
    1,110.83/1,664.73 = 525.74/x
  3. Step 3: Cross multiply
    1,110.83x = 1,664.73 × 525.74
  4. Step 4: Simplify right side
    1,110.83x = 875,206.83
  5. Step 5: Solve for x
    x = 875,206.83/1,110.83
  6. Step 6: Final answer
    x = 787.89

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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.