Home / 3,639.19-5,022.89-2,312.63

Finding the Fourth Proportional to 3,639.19, 5,022.89 and 2,312.63

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Solution

The fourth proportional to 3,639.19, 5,022.89 and 2,312.63 is: 3,191.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,639.19 : 5,022.89 = 2,312.63 : x
  2. Step 2: Convert to fraction form
    3,639.19/5,022.89 = 2,312.63/x
  3. Step 3: Cross multiply
    3,639.19x = 5,022.89 × 2,312.63
  4. Step 4: Simplify right side
    3,639.19x = 11,616,095.77
  5. Step 5: Solve for x
    x = 11,616,095.77/3,639.19
  6. Step 6: Final answer
    x = 3,191.95

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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.