Home / 5,008.40-6,905.70-4,012.88

Finding the Fourth Proportional to 5,008.40, 6,905.70 and 4,012.88

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Solution

The fourth proportional to 5,008.40, 6,905.70 and 4,012.88 is: 5,533.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,008.40 : 6,905.70 = 4,012.88 : x
  2. Step 2: Convert to fraction form
    5,008.40/6,905.70 = 4,012.88/x
  3. Step 3: Cross multiply
    5,008.40x = 6,905.70 × 4,012.88
  4. Step 4: Simplify right side
    5,008.40x = 27,711,745.42
  5. Step 5: Solve for x
    x = 27,711,745.42/5,008.40
  6. Step 6: Final answer
    x = 5,533.05

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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.