Home / 4,478.57-6,715.55-2,011.28

Finding the Fourth Proportional to 4,478.57, 6,715.55 and 2,011.28

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Solution

The fourth proportional to 4,478.57, 6,715.55 and 2,011.28 is: 3,015.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,478.57 : 6,715.55 = 2,011.28 : x
  2. Step 2: Convert to fraction form
    4,478.57/6,715.55 = 2,011.28/x
  3. Step 3: Cross multiply
    4,478.57x = 6,715.55 × 2,011.28
  4. Step 4: Simplify right side
    4,478.57x = 13,506,858.14
  5. Step 5: Solve for x
    x = 13,506,858.14/4,478.57
  6. Step 6: Final answer
    x = 3,015.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.