Home / 4,285.35-6,428.48-1,165.40

Finding the Fourth Proportional to 4,285.35, 6,428.48 and 1,165.40

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Solution

The fourth proportional to 4,285.35, 6,428.48 and 1,165.40 is: 1,748.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,285.35 : 6,428.48 = 1,165.40 : x
  2. Step 2: Convert to fraction form
    4,285.35/6,428.48 = 1,165.40/x
  3. Step 3: Cross multiply
    4,285.35x = 6,428.48 × 1,165.40
  4. Step 4: Simplify right side
    4,285.35x = 7,491,766.86
  5. Step 5: Solve for x
    x = 7,491,766.86/4,285.35
  6. Step 6: Final answer
    x = 1,748.23

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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.