Home / 4,185.79-6,278.53-1,688.05

Finding the Fourth Proportional to 4,185.79, 6,278.53 and 1,688.05

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Solution

The fourth proportional to 4,185.79, 6,278.53 and 1,688.05 is: 2,532.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,185.79 : 6,278.53 = 1,688.05 : x
  2. Step 2: Convert to fraction form
    4,185.79/6,278.53 = 1,688.05/x
  3. Step 3: Cross multiply
    4,185.79x = 6,278.53 × 1,688.05
  4. Step 4: Simplify right side
    4,185.79x = 10,598,476.19
  5. Step 5: Solve for x
    x = 10,598,476.19/4,185.79
  6. Step 6: Final answer
    x = 2,532.01

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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.