Home / 1,563.45-2,157.14-1,059.55

Finding the Fourth Proportional to 1,563.45, 2,157.14 and 1,059.55

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Solution

The fourth proportional to 1,563.45, 2,157.14 and 1,059.55 is: 1,461.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,563.45 : 2,157.14 = 1,059.55 : x
  2. Step 2: Convert to fraction form
    1,563.45/2,157.14 = 1,059.55/x
  3. Step 3: Cross multiply
    1,563.45x = 2,157.14 × 1,059.55
  4. Step 4: Simplify right side
    1,563.45x = 2,285,597.69
  5. Step 5: Solve for x
    x = 2,285,597.69/1,563.45
  6. Step 6: Final answer
    x = 1,461.90

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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.