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Finding the Fourth Proportional to 5,295.18, 7,943.40 and 1,399.62

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Solution

The fourth proportional to 5,295.18, 7,943.40 and 1,399.62 is: 2,099.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,295.18 : 7,943.40 = 1,399.62 : x
  2. Step 2: Convert to fraction form
    5,295.18/7,943.40 = 1,399.62/x
  3. Step 3: Cross multiply
    5,295.18x = 7,943.40 × 1,399.62
  4. Step 4: Simplify right side
    5,295.18x = 11,117,741.51
  5. Step 5: Solve for x
    x = 11,117,741.51/5,295.18
  6. Step 6: Final answer
    x = 2,099.60

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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.