Home / 2,573.28-3,551-1,578.64

Finding the Fourth Proportional to 2,573.28, 3,551 and 1,578.64

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Solution

The fourth proportional to 2,573.28, 3,551 and 1,578.64 is: 2,178.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,573.28 : 3,551 = 1,578.64 : x
  2. Step 2: Convert to fraction form
    2,573.28/3,551 = 1,578.64/x
  3. Step 3: Cross multiply
    2,573.28x = 3,551 × 1,578.64
  4. Step 4: Simplify right side
    2,573.28x = 5,605,750.64
  5. Step 5: Solve for x
    x = 5,605,750.64/2,573.28
  6. Step 6: Final answer
    x = 2,178.45

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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.