Home / 3,426.69-4,728.81-1,934.90

Finding the Fourth Proportional to 3,426.69, 4,728.81 and 1,934.90

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Solution

The fourth proportional to 3,426.69, 4,728.81 and 1,934.90 is: 2,670.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,426.69 : 4,728.81 = 1,934.90 : x
  2. Step 2: Convert to fraction form
    3,426.69/4,728.81 = 1,934.90/x
  3. Step 3: Cross multiply
    3,426.69x = 4,728.81 × 1,934.90
  4. Step 4: Simplify right side
    3,426.69x = 9,149,746.19
  5. Step 5: Solve for x
    x = 9,149,746.19/3,426.69
  6. Step 6: Final answer
    x = 2,670.14

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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.