Home / 3,742.02-5,166.47-2,889.74

Finding the Fourth Proportional to 3,742.02, 5,166.47 and 2,889.74

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Solution

The fourth proportional to 3,742.02, 5,166.47 and 2,889.74 is: 3,989.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.02 : 5,166.47 = 2,889.74 : x
  2. Step 2: Convert to fraction form
    3,742.02/5,166.47 = 2,889.74/x
  3. Step 3: Cross multiply
    3,742.02x = 5,166.47 × 2,889.74
  4. Step 4: Simplify right side
    3,742.02x = 14,929,775.16
  5. Step 5: Solve for x
    x = 14,929,775.16/3,742.02
  6. Step 6: Final answer
    x = 3,989.76

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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.