Home / 3,037.50-4,191.72-1,779.21

Finding the Fourth Proportional to 3,037.50, 4,191.72 and 1,779.21

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Solution

The fourth proportional to 3,037.50, 4,191.72 and 1,779.21 is: 2,455.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,037.50 : 4,191.72 = 1,779.21 : x
  2. Step 2: Convert to fraction form
    3,037.50/4,191.72 = 1,779.21/x
  3. Step 3: Cross multiply
    3,037.50x = 4,191.72 × 1,779.21
  4. Step 4: Simplify right side
    3,037.50x = 7,457,950.14
  5. Step 5: Solve for x
    x = 7,457,950.14/3,037.50
  6. Step 6: Final answer
    x = 2,455.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.