Home / 5,675.83-8,515.11-1,780.23

Finding the Fourth Proportional to 5,675.83, 8,515.11 and 1,780.23

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Solution

The fourth proportional to 5,675.83, 8,515.11 and 1,780.23 is: 2,670.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,675.83 : 8,515.11 = 1,780.23 : x
  2. Step 2: Convert to fraction form
    5,675.83/8,515.11 = 1,780.23/x
  3. Step 3: Cross multiply
    5,675.83x = 8,515.11 × 1,780.23
  4. Step 4: Simplify right side
    5,675.83x = 15,158,854.28
  5. Step 5: Solve for x
    x = 15,158,854.28/5,675.83
  6. Step 6: Final answer
    x = 2,670.77

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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.