Home / 1,779.30-2,655.77-1,669.86

Finding the Fourth Proportional to 1,779.30, 2,655.77 and 1,669.86

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Solution

The fourth proportional to 1,779.30, 2,655.77 and 1,669.86 is: 2,492.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,779.30 : 2,655.77 = 1,669.86 : x
  2. Step 2: Convert to fraction form
    1,779.30/2,655.77 = 1,669.86/x
  3. Step 3: Cross multiply
    1,779.30x = 2,655.77 × 1,669.86
  4. Step 4: Simplify right side
    1,779.30x = 4,434,755.74
  5. Step 5: Solve for x
    x = 4,434,755.74/1,779.30
  6. Step 6: Final answer
    x = 2,492.42

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.