Home / 5,416.84-8,125.28-1,721.66

Finding the Fourth Proportional to 5,416.84, 8,125.28 and 1,721.66

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Solution

The fourth proportional to 5,416.84, 8,125.28 and 1,721.66 is: 2,582.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,416.84 : 8,125.28 = 1,721.66 : x
  2. Step 2: Convert to fraction form
    5,416.84/8,125.28 = 1,721.66/x
  3. Step 3: Cross multiply
    5,416.84x = 8,125.28 × 1,721.66
  4. Step 4: Simplify right side
    5,416.84x = 13,988,969.56
  5. Step 5: Solve for x
    x = 13,988,969.56/5,416.84
  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.