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Finding the Fourth Proportional to 5,742.70, 8,051.30 and 5,742.70

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Solution

The fourth proportional to 5,742.70, 8,051.30 and 5,742.70 is: 8,051.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,742.70 : 8,051.30 = 5,742.70 : x
  2. Step 2: Convert to fraction form
    5,742.70/8,051.30 = 5,742.70/x
  3. Step 3: Cross multiply
    5,742.70x = 8,051.30 × 5,742.70
  4. Step 4: Simplify right side
    5,742.70x = 46,236,200.51
  5. Step 5: Solve for x
    x = 46,236,200.51/5,742.70
  6. Step 6: Final answer
    x = 8,051.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.