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Finding the Fourth Proportional to 5,363.60, 8,045.80 and 1,900.40

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Solution

The fourth proportional to 5,363.60, 8,045.80 and 1,900.40 is: 2,850.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,363.60 : 8,045.80 = 1,900.40 : x
  2. Step 2: Convert to fraction form
    5,363.60/8,045.80 = 1,900.40/x
  3. Step 3: Cross multiply
    5,363.60x = 8,045.80 × 1,900.40
  4. Step 4: Simplify right side
    5,363.60x = 15,290,238.32
  5. Step 5: Solve for x
    x = 15,290,238.32/5,363.60
  6. Step 6: Final answer
    x = 2,850.74

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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.