Home / 1,628.55-2,442.85-1,170.23

Finding the Fourth Proportional to 1,628.55, 2,442.85 and 1,170.23

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Solution

The fourth proportional to 1,628.55, 2,442.85 and 1,170.23 is: 1,755.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,628.55 : 2,442.85 = 1,170.23 : x
  2. Step 2: Convert to fraction form
    1,628.55/2,442.85 = 1,170.23/x
  3. Step 3: Cross multiply
    1,628.55x = 2,442.85 × 1,170.23
  4. Step 4: Simplify right side
    1,628.55x = 2,858,681.22
  5. Step 5: Solve for x
    x = 2,858,681.22/1,628.55
  6. Step 6: Final answer
    x = 1,755.35

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.