Home / 4,085.20-6,127.80-4,056.40

Finding the Fourth Proportional to 4,085.20, 6,127.80 and 4,056.40

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Solution

The fourth proportional to 4,085.20, 6,127.80 and 4,056.40 is: 6,084.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,085.20 : 6,127.80 = 4,056.40 : x
  2. Step 2: Convert to fraction form
    4,085.20/6,127.80 = 4,056.40/x
  3. Step 3: Cross multiply
    4,085.20x = 6,127.80 × 4,056.40
  4. Step 4: Simplify right side
    4,085.20x = 24,856,807.92
  5. Step 5: Solve for x
    x = 24,856,807.92/4,085.20
  6. Step 6: Final answer
    x = 6,084.60

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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.