Home / 2,527.40-3,485.85-1,643.51

Finding the Fourth Proportional to 2,527.40, 3,485.85 and 1,643.51

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Solution

The fourth proportional to 2,527.40, 3,485.85 and 1,643.51 is: 2,266.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,527.40 : 3,485.85 = 1,643.51 : x
  2. Step 2: Convert to fraction form
    2,527.40/3,485.85 = 1,643.51/x
  3. Step 3: Cross multiply
    2,527.40x = 3,485.85 × 1,643.51
  4. Step 4: Simplify right side
    2,527.40x = 5,729,029.33
  5. Step 5: Solve for x
    x = 5,729,029.33/2,527.40
  6. Step 6: Final answer
    x = 2,266.77

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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.