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Finding the Fourth Proportional to 5,411.08, 8,135.94 and 4,983.40

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Solution

The fourth proportional to 5,411.08, 8,135.94 and 4,983.40 is: 7,492.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,411.08 : 8,135.94 = 4,983.40 : x
  2. Step 2: Convert to fraction form
    5,411.08/8,135.94 = 4,983.40/x
  3. Step 3: Cross multiply
    5,411.08x = 8,135.94 × 4,983.40
  4. Step 4: Simplify right side
    5,411.08x = 40,544,643.40
  5. Step 5: Solve for x
    x = 40,544,643.40/5,411.08
  6. Step 6: Final answer
    x = 7,492.89

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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.