Home / 3,746.16-5,157-3,219.12

Finding the Fourth Proportional to 3,746.16, 5,157 and 3,219.12

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Solution

The fourth proportional to 3,746.16, 5,157 and 3,219.12 is: 4,431.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,746.16 : 5,157 = 3,219.12 : x
  2. Step 2: Convert to fraction form
    3,746.16/5,157 = 3,219.12/x
  3. Step 3: Cross multiply
    3,746.16x = 5,157 × 3,219.12
  4. Step 4: Simplify right side
    3,746.16x = 16,601,001.84
  5. Step 5: Solve for x
    x = 16,601,001.84/3,746.16
  6. Step 6: Final answer
    x = 4,431.47

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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.