Home / 2,525.64-3,485.19-1,406.40

Finding the Fourth Proportional to 2,525.64, 3,485.19 and 1,406.40

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Solution

The fourth proportional to 2,525.64, 3,485.19 and 1,406.40 is: 1,940.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,525.64 : 3,485.19 = 1,406.40 : x
  2. Step 2: Convert to fraction form
    2,525.64/3,485.19 = 1,406.40/x
  3. Step 3: Cross multiply
    2,525.64x = 3,485.19 × 1,406.40
  4. Step 4: Simplify right side
    2,525.64x = 4,901,572.19
  5. Step 5: Solve for x
    x = 4,901,572.19/2,525.64
  6. Step 6: Final answer
    x = 1,940.72

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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.