Home / 3,376.71-4,656.84-2,117.91

Finding the Fourth Proportional to 3,376.71, 4,656.84 and 2,117.91

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Solution

The fourth proportional to 3,376.71, 4,656.84 and 2,117.91 is: 2,920.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,376.71 : 4,656.84 = 2,117.91 : x
  2. Step 2: Convert to fraction form
    3,376.71/4,656.84 = 2,117.91/x
  3. Step 3: Cross multiply
    3,376.71x = 4,656.84 × 2,117.91
  4. Step 4: Simplify right side
    3,376.71x = 9,862,768.00
  5. Step 5: Solve for x
    x = 9,862,768.00/3,376.71
  6. Step 6: Final answer
    x = 2,920.82

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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.