Home / 2,485.19-3,429.64-1,366.16

Finding the Fourth Proportional to 2,485.19, 3,429.64 and 1,366.16

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Solution

The fourth proportional to 2,485.19, 3,429.64 and 1,366.16 is: 1,885.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,485.19 : 3,429.64 = 1,366.16 : x
  2. Step 2: Convert to fraction form
    2,485.19/3,429.64 = 1,366.16/x
  3. Step 3: Cross multiply
    2,485.19x = 3,429.64 × 1,366.16
  4. Step 4: Simplify right side
    2,485.19x = 4,685,442.14
  5. Step 5: Solve for x
    x = 4,685,442.14/2,485.19
  6. Step 6: Final answer
    x = 1,885.35

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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.