Home / 1,630.70-2,443.35-1,355.30

Finding the Fourth Proportional to 1,630.70, 2,443.35 and 1,355.30

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Solution

The fourth proportional to 1,630.70, 2,443.35 and 1,355.30 is: 2,030.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,630.70 : 2,443.35 = 1,355.30 : x
  2. Step 2: Convert to fraction form
    1,630.70/2,443.35 = 1,355.30/x
  3. Step 3: Cross multiply
    1,630.70x = 2,443.35 × 1,355.30
  4. Step 4: Simplify right side
    1,630.70x = 3,311,472.26
  5. Step 5: Solve for x
    x = 3,311,472.26/1,630.70
  6. Step 6: Final answer
    x = 2,030.71

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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.