Home / 4,085.60-6,128.40-4,056.80

Finding the Fourth Proportional to 4,085.60, 6,128.40 and 4,056.80

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Solution

The fourth proportional to 4,085.60, 6,128.40 and 4,056.80 is: 6,085.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.60 : 6,128.40 = 4,056.80 : x
  2. Step 2: Convert to fraction form
    4,085.60/6,128.40 = 4,056.80/x
  3. Step 3: Cross multiply
    4,085.60x = 6,128.40 × 4,056.80
  4. Step 4: Simplify right side
    4,085.60x = 24,861,693.12
  5. Step 5: Solve for x
    x = 24,861,693.12/4,085.60
  6. Step 6: Final answer
    x = 6,085.20

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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.