Home / 5,159.80-7,739.58-1,264.18

Finding the Fourth Proportional to 5,159.80, 7,739.58 and 1,264.18

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Solution

The fourth proportional to 5,159.80, 7,739.58 and 1,264.18 is: 1,896.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,159.80 : 7,739.58 = 1,264.18 : x
  2. Step 2: Convert to fraction form
    5,159.80/7,739.58 = 1,264.18/x
  3. Step 3: Cross multiply
    5,159.80x = 7,739.58 × 1,264.18
  4. Step 4: Simplify right side
    5,159.80x = 9,784,222.24
  5. Step 5: Solve for x
    x = 9,784,222.24/5,159.80
  6. Step 6: Final answer
    x = 1,896.24

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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.