Home / 3,113.89-4,297-1,769.32

Finding the Fourth Proportional to 3,113.89, 4,297 and 1,769.32

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Solution

The fourth proportional to 3,113.89, 4,297 and 1,769.32 is: 2,441.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,113.89 : 4,297 = 1,769.32 : x
  2. Step 2: Convert to fraction form
    3,113.89/4,297 = 1,769.32/x
  3. Step 3: Cross multiply
    3,113.89x = 4,297 × 1,769.32
  4. Step 4: Simplify right side
    3,113.89x = 7,602,746.56
  5. Step 5: Solve for x
    x = 7,602,746.56/3,113.89
  6. Step 6: Final answer
    x = 2,441.56

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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.