Home / 4,087.12-6,130.88-1,165.86

Finding the Fourth Proportional to 4,087.12, 6,130.88 and 1,165.86

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Solution

The fourth proportional to 4,087.12, 6,130.88 and 1,165.86 is: 1,748.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,087.12 : 6,130.88 = 1,165.86 : x
  2. Step 2: Convert to fraction form
    4,087.12/6,130.88 = 1,165.86/x
  3. Step 3: Cross multiply
    4,087.12x = 6,130.88 × 1,165.86
  4. Step 4: Simplify right side
    4,087.12x = 7,147,747.76
  5. Step 5: Solve for x
    x = 7,147,747.76/4,087.12
  6. Step 6: Final answer
    x = 1,748.85

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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.