Home / 2,829.12-4,243.62-1,513.32

Finding the Fourth Proportional to 2,829.12, 4,243.62 and 1,513.32

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Solution

The fourth proportional to 2,829.12, 4,243.62 and 1,513.32 is: 2,269.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,829.12 : 4,243.62 = 1,513.32 : x
  2. Step 2: Convert to fraction form
    2,829.12/4,243.62 = 1,513.32/x
  3. Step 3: Cross multiply
    2,829.12x = 4,243.62 × 1,513.32
  4. Step 4: Simplify right side
    2,829.12x = 6,421,955.02
  5. Step 5: Solve for x
    x = 6,421,955.02/2,829.12
  6. Step 6: Final answer
    x = 2,269.95

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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.