Home / 1,829.90-2,740.80-1,624.70

Finding the Fourth Proportional to 1,829.90, 2,740.80 and 1,624.70

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Solution

The fourth proportional to 1,829.90, 2,740.80 and 1,624.70 is: 2,433.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,829.90 : 2,740.80 = 1,624.70 : x
  2. Step 2: Convert to fraction form
    1,829.90/2,740.80 = 1,624.70/x
  3. Step 3: Cross multiply
    1,829.90x = 2,740.80 × 1,624.70
  4. Step 4: Simplify right side
    1,829.90x = 4,452,977.76
  5. Step 5: Solve for x
    x = 4,452,977.76/1,829.90
  6. Step 6: Final answer
    x = 2,433.45

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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.