Home / 2,485.23-3,429.65-1,366.15

Finding the Fourth Proportional to 2,485.23, 3,429.65 and 1,366.15

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Solution

The fourth proportional to 2,485.23, 3,429.65 and 1,366.15 is: 1,885.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.23 : 3,429.65 = 1,366.15 : x
  2. Step 2: Convert to fraction form
    2,485.23/3,429.65 = 1,366.15/x
  3. Step 3: Cross multiply
    2,485.23x = 3,429.65 × 1,366.15
  4. Step 4: Simplify right side
    2,485.23x = 4,685,400.94
  5. Step 5: Solve for x
    x = 4,685,400.94/2,485.23
  6. Step 6: Final answer
    x = 1,885.30

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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.