Home / 4,878.26-7,312.11-1,955.06

Finding the Fourth Proportional to 4,878.26, 7,312.11 and 1,955.06

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Solution

The fourth proportional to 4,878.26, 7,312.11 and 1,955.06 is: 2,930.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,878.26 : 7,312.11 = 1,955.06 : x
  2. Step 2: Convert to fraction form
    4,878.26/7,312.11 = 1,955.06/x
  3. Step 3: Cross multiply
    4,878.26x = 7,312.11 × 1,955.06
  4. Step 4: Simplify right side
    4,878.26x = 14,295,613.78
  5. Step 5: Solve for x
    x = 14,295,613.78/4,878.26
  6. Step 6: Final answer
    x = 2,930.47

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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.