Home / 5,298.47-7,311.92-2,908.68

Finding the Fourth Proportional to 5,298.47, 7,311.92 and 2,908.68

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Solution

The fourth proportional to 5,298.47, 7,311.92 and 2,908.68 is: 4,014.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,298.47 : 7,311.92 = 2,908.68 : x
  2. Step 2: Convert to fraction form
    5,298.47/7,311.92 = 2,908.68/x
  3. Step 3: Cross multiply
    5,298.47x = 7,311.92 × 2,908.68
  4. Step 4: Simplify right side
    5,298.47x = 21,268,035.47
  5. Step 5: Solve for x
    x = 21,268,035.47/5,298.47
  6. Step 6: Final answer
    x = 4,014.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.