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Finding the Fourth Proportional to 5,283.81, 7,926.62 and 1,820.25

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Solution

The fourth proportional to 5,283.81, 7,926.62 and 1,820.25 is: 2,730.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,283.81 : 7,926.62 = 1,820.25 : x
  2. Step 2: Convert to fraction form
    5,283.81/7,926.62 = 1,820.25/x
  3. Step 3: Cross multiply
    5,283.81x = 7,926.62 × 1,820.25
  4. Step 4: Simplify right side
    5,283.81x = 14,428,420.95
  5. Step 5: Solve for x
    x = 14,428,420.95/5,283.81
  6. Step 6: Final answer
    x = 2,730.69

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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.