Home / 3,957.66-5,461.47-2,189.16

Finding the Fourth Proportional to 3,957.66, 5,461.47 and 2,189.16

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Solution

The fourth proportional to 3,957.66, 5,461.47 and 2,189.16 is: 3,020.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,957.66 : 5,461.47 = 2,189.16 : x
  2. Step 2: Convert to fraction form
    3,957.66/5,461.47 = 2,189.16/x
  3. Step 3: Cross multiply
    3,957.66x = 5,461.47 × 2,189.16
  4. Step 4: Simplify right side
    3,957.66x = 11,956,031.67
  5. Step 5: Solve for x
    x = 11,956,031.67/3,957.66
  6. Step 6: Final answer
    x = 3,020.99

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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.