Home / 3,397.07-4,688.01-1,980.72

Finding the Fourth Proportional to 3,397.07, 4,688.01 and 1,980.72

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Solution

The fourth proportional to 3,397.07, 4,688.01 and 1,980.72 is: 2,733.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,397.07 : 4,688.01 = 1,980.72 : x
  2. Step 2: Convert to fraction form
    3,397.07/4,688.01 = 1,980.72/x
  3. Step 3: Cross multiply
    3,397.07x = 4,688.01 × 1,980.72
  4. Step 4: Simplify right side
    3,397.07x = 9,285,635.17
  5. Step 5: Solve for x
    x = 9,285,635.17/3,397.07
  6. Step 6: Final answer
    x = 2,733.42

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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.