Home / 5,675.10-8,512.65-1,779.81

Finding the Fourth Proportional to 5,675.10, 8,512.65 and 1,779.81

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Solution

The fourth proportional to 5,675.10, 8,512.65 and 1,779.81 is: 2,669.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.10 : 8,512.65 = 1,779.81 : x
  2. Step 2: Convert to fraction form
    5,675.10/8,512.65 = 1,779.81/x
  3. Step 3: Cross multiply
    5,675.10x = 8,512.65 × 1,779.81
  4. Step 4: Simplify right side
    5,675.10x = 15,150,899.60
  5. Step 5: Solve for x
    x = 15,150,899.60/5,675.10
  6. Step 6: Final answer
    x = 2,669.72

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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.