Home / 3,419.34-4,718.16-1,926.90

Finding the Fourth Proportional to 3,419.34, 4,718.16 and 1,926.90

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Solution

The fourth proportional to 3,419.34, 4,718.16 and 1,926.90 is: 2,658.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,419.34 : 4,718.16 = 1,926.90 : x
  2. Step 2: Convert to fraction form
    3,419.34/4,718.16 = 1,926.90/x
  3. Step 3: Cross multiply
    3,419.34x = 4,718.16 × 1,926.90
  4. Step 4: Simplify right side
    3,419.34x = 9,091,422.50
  5. Step 5: Solve for x
    x = 9,091,422.50/3,419.34
  6. Step 6: Final answer
    x = 2,658.82

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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.