Home / 5,206.40-7,187.36-4,084.80

Finding the Fourth Proportional to 5,206.40, 7,187.36 and 4,084.80

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Solution

The fourth proportional to 5,206.40, 7,187.36 and 4,084.80 is: 5,639.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,206.40 : 7,187.36 = 4,084.80 : x
  2. Step 2: Convert to fraction form
    5,206.40/7,187.36 = 4,084.80/x
  3. Step 3: Cross multiply
    5,206.40x = 7,187.36 × 4,084.80
  4. Step 4: Simplify right side
    5,206.40x = 29,358,928.13
  5. Step 5: Solve for x
    x = 29,358,928.13/5,206.40
  6. Step 6: Final answer
    x = 5,639.01

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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.