Home / 5,618.53-8,426.71-1,721.89

Finding the Fourth Proportional to 5,618.53, 8,426.71 and 1,721.89

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Solution

The fourth proportional to 5,618.53, 8,426.71 and 1,721.89 is: 2,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,618.53 : 8,426.71 = 1,721.89 : x
  2. Step 2: Convert to fraction form
    5,618.53/8,426.71 = 1,721.89/x
  3. Step 3: Cross multiply
    5,618.53x = 8,426.71 × 1,721.89
  4. Step 4: Simplify right side
    5,618.53x = 14,509,867.68
  5. Step 5: Solve for x
    x = 14,509,867.68/5,618.53
  6. Step 6: Final answer
    x = 2,582.50

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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.