Home / 4,980.75-6,870.85-4,037.60

Finding the Fourth Proportional to 4,980.75, 6,870.85 and 4,037.60

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Solution

The fourth proportional to 4,980.75, 6,870.85 and 4,037.60 is: 5,569.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,980.75 : 6,870.85 = 4,037.60 : x
  2. Step 2: Convert to fraction form
    4,980.75/6,870.85 = 4,037.60/x
  3. Step 3: Cross multiply
    4,980.75x = 6,870.85 × 4,037.60
  4. Step 4: Simplify right side
    4,980.75x = 27,741,751.04
  5. Step 5: Solve for x
    x = 27,741,751.04/4,980.75
  6. Step 6: Final answer
    x = 5,569.80

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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.