Home / 3,742.74-5,155.65-2,904.39

Finding the Fourth Proportional to 3,742.74, 5,155.65 and 2,904.39

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Solution

The fourth proportional to 3,742.74, 5,155.65 and 2,904.39 is: 4,000.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,742.74 : 5,155.65 = 2,904.39 : x
  2. Step 2: Convert to fraction form
    3,742.74/5,155.65 = 2,904.39/x
  3. Step 3: Cross multiply
    3,742.74x = 5,155.65 × 2,904.39
  4. Step 4: Simplify right side
    3,742.74x = 14,974,018.30
  5. Step 5: Solve for x
    x = 14,974,018.30/3,742.74
  6. Step 6: Final answer
    x = 4,000.82

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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.