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Finding the Fourth Proportional to 5,323.70, 7,345.01 and 3,926.90

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Solution

The fourth proportional to 5,323.70, 7,345.01 and 3,926.90 is: 5,417.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.70 : 7,345.01 = 3,926.90 : x
  2. Step 2: Convert to fraction form
    5,323.70/7,345.01 = 3,926.90/x
  3. Step 3: Cross multiply
    5,323.70x = 7,345.01 × 3,926.90
  4. Step 4: Simplify right side
    5,323.70x = 28,843,119.77
  5. Step 5: Solve for x
    x = 28,843,119.77/5,323.70
  6. Step 6: Final answer
    x = 5,417.87

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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.