Home / 5,259.02-7,889.77-1,561.28

Finding the Fourth Proportional to 5,259.02, 7,889.77 and 1,561.28

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Solution

The fourth proportional to 5,259.02, 7,889.77 and 1,561.28 is: 2,342.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,259.02 : 7,889.77 = 1,561.28 : x
  2. Step 2: Convert to fraction form
    5,259.02/7,889.77 = 1,561.28/x
  3. Step 3: Cross multiply
    5,259.02x = 7,889.77 × 1,561.28
  4. Step 4: Simplify right side
    5,259.02x = 12,318,140.11
  5. Step 5: Solve for x
    x = 12,318,140.11/5,259.02
  6. Step 6: Final answer
    x = 2,342.29

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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.