Home / 5,129.64-7,075.62-3,557.16

Finding the Fourth Proportional to 5,129.64, 7,075.62 and 3,557.16

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Solution

The fourth proportional to 5,129.64, 7,075.62 and 3,557.16 is: 4,906.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,129.64 : 7,075.62 = 3,557.16 : x
  2. Step 2: Convert to fraction form
    5,129.64/7,075.62 = 3,557.16/x
  3. Step 3: Cross multiply
    5,129.64x = 7,075.62 × 3,557.16
  4. Step 4: Simplify right side
    5,129.64x = 25,169,112.44
  5. Step 5: Solve for x
    x = 25,169,112.44/5,129.64
  6. Step 6: Final answer
    x = 4,906.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.