Home / 4,050.80-6,074.96-1,128.40

Finding the Fourth Proportional to 4,050.80, 6,074.96 and 1,128.40

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Solution

The fourth proportional to 4,050.80, 6,074.96 and 1,128.40 is: 1,692.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,050.80 : 6,074.96 = 1,128.40 : x
  2. Step 2: Convert to fraction form
    4,050.80/6,074.96 = 1,128.40/x
  3. Step 3: Cross multiply
    4,050.80x = 6,074.96 × 1,128.40
  4. Step 4: Simplify right side
    4,050.80x = 6,854,984.86
  5. Step 5: Solve for x
    x = 6,854,984.86/4,050.80
  6. Step 6: Final answer
    x = 1,692.25

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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.