Home / 4,835.20-6,668.80-3,154.72

Finding the Fourth Proportional to 4,835.20, 6,668.80 and 3,154.72

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Solution

The fourth proportional to 4,835.20, 6,668.80 and 3,154.72 is: 4,351.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,835.20 : 6,668.80 = 3,154.72 : x
  2. Step 2: Convert to fraction form
    4,835.20/6,668.80 = 3,154.72/x
  3. Step 3: Cross multiply
    4,835.20x = 6,668.80 × 3,154.72
  4. Step 4: Simplify right side
    4,835.20x = 21,038,196.74
  5. Step 5: Solve for x
    x = 21,038,196.74/4,835.20
  6. Step 6: Final answer
    x = 4,351.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.