Home / 1,658.55-2,289.52-1,120.30

Finding the Fourth Proportional to 1,658.55, 2,289.52 and 1,120.30

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Solution

The fourth proportional to 1,658.55, 2,289.52 and 1,120.30 is: 1,546.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,658.55 : 2,289.52 = 1,120.30 : x
  2. Step 2: Convert to fraction form
    1,658.55/2,289.52 = 1,120.30/x
  3. Step 3: Cross multiply
    1,658.55x = 2,289.52 × 1,120.30
  4. Step 4: Simplify right side
    1,658.55x = 2,564,949.26
  5. Step 5: Solve for x
    x = 2,564,949.26/1,658.55
  6. Step 6: Final answer
    x = 1,546.50

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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.