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Finding the Fourth Proportional to 5,288.59, 7,935.96 and 1,959.19

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Solution

The fourth proportional to 5,288.59, 7,935.96 and 1,959.19 is: 2,939.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,288.59 : 7,935.96 = 1,959.19 : x
  2. Step 2: Convert to fraction form
    5,288.59/7,935.96 = 1,959.19/x
  3. Step 3: Cross multiply
    5,288.59x = 7,935.96 × 1,959.19
  4. Step 4: Simplify right side
    5,288.59x = 15,548,038.22
  5. Step 5: Solve for x
    x = 15,548,038.22/5,288.59
  6. Step 6: Final answer
    x = 2,939.92

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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.