Home / 2,525.70-3,485.07-1,406.28

Finding the Fourth Proportional to 2,525.70, 3,485.07 and 1,406.28

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Solution

The fourth proportional to 2,525.70, 3,485.07 and 1,406.28 is: 1,940.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.70 : 3,485.07 = 1,406.28 : x
  2. Step 2: Convert to fraction form
    2,525.70/3,485.07 = 1,406.28/x
  3. Step 3: Cross multiply
    2,525.70x = 3,485.07 × 1,406.28
  4. Step 4: Simplify right side
    2,525.70x = 4,900,984.24
  5. Step 5: Solve for x
    x = 4,900,984.24/2,525.70
  6. Step 6: Final answer
    x = 1,940.45

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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.