Home / 4,867.80-7,308.45-3,123.60

Finding the Fourth Proportional to 4,867.80, 7,308.45 and 3,123.60

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Solution

The fourth proportional to 4,867.80, 7,308.45 and 3,123.60 is: 4,689.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,867.80 : 7,308.45 = 3,123.60 : x
  2. Step 2: Convert to fraction form
    4,867.80/7,308.45 = 3,123.60/x
  3. Step 3: Cross multiply
    4,867.80x = 7,308.45 × 3,123.60
  4. Step 4: Simplify right side
    4,867.80x = 22,828,674.42
  5. Step 5: Solve for x
    x = 22,828,674.42/4,867.80
  6. Step 6: Final answer
    x = 4,689.73

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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.