Home / 4,162.79-6,242.08-1,388.47

Finding the Fourth Proportional to 4,162.79, 6,242.08 and 1,388.47

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Solution

The fourth proportional to 4,162.79, 6,242.08 and 1,388.47 is: 2,082.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,162.79 : 6,242.08 = 1,388.47 : x
  2. Step 2: Convert to fraction form
    4,162.79/6,242.08 = 1,388.47/x
  3. Step 3: Cross multiply
    4,162.79x = 6,242.08 × 1,388.47
  4. Step 4: Simplify right side
    4,162.79x = 8,666,940.82
  5. Step 5: Solve for x
    x = 8,666,940.82/4,162.79
  6. Step 6: Final answer
    x = 2,082.00

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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.