Home / 5,639.14-7,785.56-3,623.46

Finding the Fourth Proportional to 5,639.14, 7,785.56 and 3,623.46

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Solution

The fourth proportional to 5,639.14, 7,785.56 and 3,623.46 is: 5,002.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,639.14 : 7,785.56 = 3,623.46 : x
  2. Step 2: Convert to fraction form
    5,639.14/7,785.56 = 3,623.46/x
  3. Step 3: Cross multiply
    5,639.14x = 7,785.56 × 3,623.46
  4. Step 4: Simplify right side
    5,639.14x = 28,210,641.52
  5. Step 5: Solve for x
    x = 28,210,641.52/5,639.14
  6. Step 6: Final answer
    x = 5,002.65

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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.