Home / 2,551.12-3,520.53-1,489.51

Finding the Fourth Proportional to 2,551.12, 3,520.53 and 1,489.51

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Solution

The fourth proportional to 2,551.12, 3,520.53 and 1,489.51 is: 2,055.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.12 : 3,520.53 = 1,489.51 : x
  2. Step 2: Convert to fraction form
    2,551.12/3,520.53 = 1,489.51/x
  3. Step 3: Cross multiply
    2,551.12x = 3,520.53 × 1,489.51
  4. Step 4: Simplify right side
    2,551.12x = 5,243,864.64
  5. Step 5: Solve for x
    x = 5,243,864.64/2,551.12
  6. Step 6: Final answer
    x = 2,055.51

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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.