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Finding the Fourth Proportional to 5,323.26, 7,985.02 and 1,860.50

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Solution

The fourth proportional to 5,323.26, 7,985.02 and 1,860.50 is: 2,790.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,323.26 : 7,985.02 = 1,860.50 : x
  2. Step 2: Convert to fraction form
    5,323.26/7,985.02 = 1,860.50/x
  3. Step 3: Cross multiply
    5,323.26x = 7,985.02 × 1,860.50
  4. Step 4: Simplify right side
    5,323.26x = 14,856,129.71
  5. Step 5: Solve for x
    x = 14,856,129.71/5,323.26
  6. Step 6: Final answer
    x = 2,790.80

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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.