Home / 3,011.31-4,519.68-1,779.84

Finding the Fourth Proportional to 3,011.31, 4,519.68 and 1,779.84

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Solution

The fourth proportional to 3,011.31, 4,519.68 and 1,779.84 is: 2,671.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.31 : 4,519.68 = 1,779.84 : x
  2. Step 2: Convert to fraction form
    3,011.31/4,519.68 = 1,779.84/x
  3. Step 3: Cross multiply
    3,011.31x = 4,519.68 × 1,779.84
  4. Step 4: Simplify right side
    3,011.31x = 8,044,307.25
  5. Step 5: Solve for x
    x = 8,044,307.25/3,011.31
  6. Step 6: Final answer
    x = 2,671.36

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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.