Home / 4,919.08-7,378.35-2,970.76

Finding the Fourth Proportional to 4,919.08, 7,378.35 and 2,970.76

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Solution

The fourth proportional to 4,919.08, 7,378.35 and 2,970.76 is: 4,455.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,919.08 : 7,378.35 = 2,970.76 : x
  2. Step 2: Convert to fraction form
    4,919.08/7,378.35 = 2,970.76/x
  3. Step 3: Cross multiply
    4,919.08x = 7,378.35 × 2,970.76
  4. Step 4: Simplify right side
    4,919.08x = 21,919,307.05
  5. Step 5: Solve for x
    x = 21,919,307.05/4,919.08
  6. Step 6: Final answer
    x = 4,455.98

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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.