Home / 3,547.72-4,891.52-2,219.12

Finding the Fourth Proportional to 3,547.72, 4,891.52 and 2,219.12

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Solution

The fourth proportional to 3,547.72, 4,891.52 and 2,219.12 is: 3,059.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.72 : 4,891.52 = 2,219.12 : x
  2. Step 2: Convert to fraction form
    3,547.72/4,891.52 = 2,219.12/x
  3. Step 3: Cross multiply
    3,547.72x = 4,891.52 × 2,219.12
  4. Step 4: Simplify right side
    3,547.72x = 10,854,858.77
  5. Step 5: Solve for x
    x = 10,854,858.77/3,547.72
  6. Step 6: Final answer
    x = 3,059.67

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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.