Home / 3,695.28-5,099.64-2,123.88

Finding the Fourth Proportional to 3,695.28, 5,099.64 and 2,123.88

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Solution

The fourth proportional to 3,695.28, 5,099.64 and 2,123.88 is: 2,931.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,695.28 : 5,099.64 = 2,123.88 : x
  2. Step 2: Convert to fraction form
    3,695.28/5,099.64 = 2,123.88/x
  3. Step 3: Cross multiply
    3,695.28x = 5,099.64 × 2,123.88
  4. Step 4: Simplify right side
    3,695.28x = 10,831,023.40
  5. Step 5: Solve for x
    x = 10,831,023.40/3,695.28
  6. Step 6: Final answer
    x = 2,931.04

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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.