Home / 2,624.90-3,622.34-1,429.80

Finding the Fourth Proportional to 2,624.90, 3,622.34 and 1,429.80

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Solution

The fourth proportional to 2,624.90, 3,622.34 and 1,429.80 is: 1,973.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,624.90 : 3,622.34 = 1,429.80 : x
  2. Step 2: Convert to fraction form
    2,624.90/3,622.34 = 1,429.80/x
  3. Step 3: Cross multiply
    2,624.90x = 3,622.34 × 1,429.80
  4. Step 4: Simplify right side
    2,624.90x = 5,179,225.31
  5. Step 5: Solve for x
    x = 5,179,225.31/2,624.90
  6. Step 6: Final answer
    x = 1,973.11

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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.