Home / 4,784.60-7,168.80-3,140.30

Finding the Fourth Proportional to 4,784.60, 7,168.80 and 3,140.30

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Solution

The fourth proportional to 4,784.60, 7,168.80 and 3,140.30 is: 4,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,784.60 : 7,168.80 = 3,140.30 : x
  2. Step 2: Convert to fraction form
    4,784.60/7,168.80 = 3,140.30/x
  3. Step 3: Cross multiply
    4,784.60x = 7,168.80 × 3,140.30
  4. Step 4: Simplify right side
    4,784.60x = 22,512,182.64
  5. Step 5: Solve for x
    x = 22,512,182.64/4,784.60
  6. Step 6: Final answer
    x = 4,705.13

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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.