Home / 3,153.74-4,346.66-2,312.69

Finding the Fourth Proportional to 3,153.74, 4,346.66 and 2,312.69

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Solution

The fourth proportional to 3,153.74, 4,346.66 and 2,312.69 is: 3,187.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,153.74 : 4,346.66 = 2,312.69 : x
  2. Step 2: Convert to fraction form
    3,153.74/4,346.66 = 2,312.69/x
  3. Step 3: Cross multiply
    3,153.74x = 4,346.66 × 2,312.69
  4. Step 4: Simplify right side
    3,153.74x = 10,052,461.16
  5. Step 5: Solve for x
    x = 10,052,461.16/3,153.74
  6. Step 6: Final answer
    x = 3,187.48

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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.