Home / 1,852.79-2,779.25-1,125.59

Finding the Fourth Proportional to 1,852.79, 2,779.25 and 1,125.59

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Solution

The fourth proportional to 1,852.79, 2,779.25 and 1,125.59 is: 1,688.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,852.79 : 2,779.25 = 1,125.59 : x
  2. Step 2: Convert to fraction form
    1,852.79/2,779.25 = 1,125.59/x
  3. Step 3: Cross multiply
    1,852.79x = 2,779.25 × 1,125.59
  4. Step 4: Simplify right side
    1,852.79x = 3,128,276.48
  5. Step 5: Solve for x
    x = 3,128,276.48/1,852.79
  6. Step 6: Final answer
    x = 1,688.42

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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.