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Finding the Fourth Proportional to 5,445.40, 8,168.08 and 1,341.40

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Solution

The fourth proportional to 5,445.40, 8,168.08 and 1,341.40 is: 2,012.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,445.40 : 8,168.08 = 1,341.40 : x
  2. Step 2: Convert to fraction form
    5,445.40/8,168.08 = 1,341.40/x
  3. Step 3: Cross multiply
    5,445.40x = 8,168.08 × 1,341.40
  4. Step 4: Simplify right side
    5,445.40x = 10,956,662.51
  5. Step 5: Solve for x
    x = 10,956,662.51/5,445.40
  6. Step 6: Final answer
    x = 2,012.10

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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.