Home / 1,563.62-2,159.41-1,352.79

Finding the Fourth Proportional to 1,563.62, 2,159.41 and 1,352.79

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Solution

The fourth proportional to 1,563.62, 2,159.41 and 1,352.79 is: 1,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.62 : 2,159.41 = 1,352.79 : x
  2. Step 2: Convert to fraction form
    1,563.62/2,159.41 = 1,352.79/x
  3. Step 3: Cross multiply
    1,563.62x = 2,159.41 × 1,352.79
  4. Step 4: Simplify right side
    1,563.62x = 2,921,228.25
  5. Step 5: Solve for x
    x = 2,921,228.25/1,563.62
  6. Step 6: Final answer
    x = 1,868.25

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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.