Home / 6,853.60-10,280.40-4,088.80

Finding the Fourth Proportional to 6,853.60, 10,280.40 and 4,088.80

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Solution

The fourth proportional to 6,853.60, 10,280.40 and 4,088.80 is: 6,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,853.60 : 10,280.40 = 4,088.80 : x
  2. Step 2: Convert to fraction form
    6,853.60/10,280.40 = 4,088.80/x
  3. Step 3: Cross multiply
    6,853.60x = 10,280.40 × 4,088.80
  4. Step 4: Simplify right side
    6,853.60x = 42,034,499.52
  5. Step 5: Solve for x
    x = 42,034,499.52/6,853.60
  6. Step 6: Final answer
    x = 6,133.20

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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.