Home / 1,573.20-2,167.27-1,100.21

Finding the Fourth Proportional to 1,573.20, 2,167.27 and 1,100.21

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Solution

The fourth proportional to 1,573.20, 2,167.27 and 1,100.21 is: 1,515.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,573.20 : 2,167.27 = 1,100.21 : x
  2. Step 2: Convert to fraction form
    1,573.20/2,167.27 = 1,100.21/x
  3. Step 3: Cross multiply
    1,573.20x = 2,167.27 × 1,100.21
  4. Step 4: Simplify right side
    1,573.20x = 2,384,454.79
  5. Step 5: Solve for x
    x = 2,384,454.79/1,573.20
  6. Step 6: Final answer
    x = 1,515.67

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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.