Home / 4,186.29-6,279.28-1,688.55

Finding the Fourth Proportional to 4,186.29, 6,279.28 and 1,688.55

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Solution

The fourth proportional to 4,186.29, 6,279.28 and 1,688.55 is: 2,532.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,186.29 : 6,279.28 = 1,688.55 : x
  2. Step 2: Convert to fraction form
    4,186.29/6,279.28 = 1,688.55/x
  3. Step 3: Cross multiply
    4,186.29x = 6,279.28 × 1,688.55
  4. Step 4: Simplify right side
    4,186.29x = 10,602,869.80
  5. Step 5: Solve for x
    x = 10,602,869.80/4,186.29
  6. Step 6: Final answer
    x = 2,532.76

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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.