Home / 2,551.51-3,520.99-1,558.45

Finding the Fourth Proportional to 2,551.51, 3,520.99 and 1,558.45

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Solution

The fourth proportional to 2,551.51, 3,520.99 and 1,558.45 is: 2,150.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,551.51 : 3,520.99 = 1,558.45 : x
  2. Step 2: Convert to fraction form
    2,551.51/3,520.99 = 1,558.45/x
  3. Step 3: Cross multiply
    2,551.51x = 3,520.99 × 1,558.45
  4. Step 4: Simplify right side
    2,551.51x = 5,487,274.17
  5. Step 5: Solve for x
    x = 5,487,274.17/2,551.51
  6. Step 6: Final answer
    x = 2,150.60

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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.