Home / 3,688.29-5,085.41-3,013.60

Finding the Fourth Proportional to 3,688.29, 5,085.41 and 3,013.60

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Solution

The fourth proportional to 3,688.29, 5,085.41 and 3,013.60 is: 4,155.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,688.29 : 5,085.41 = 3,013.60 : x
  2. Step 2: Convert to fraction form
    3,688.29/5,085.41 = 3,013.60/x
  3. Step 3: Cross multiply
    3,688.29x = 5,085.41 × 3,013.60
  4. Step 4: Simplify right side
    3,688.29x = 15,325,390.28
  5. Step 5: Solve for x
    x = 15,325,390.28/3,688.29
  6. Step 6: Final answer
    x = 4,155.15

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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.