Home / 3,707.79-5,118.60-2,866.59

Finding the Fourth Proportional to 3,707.79, 5,118.60 and 2,866.59

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Solution

The fourth proportional to 3,707.79, 5,118.60 and 2,866.59 is: 3,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.79 : 5,118.60 = 2,866.59 : x
  2. Step 2: Convert to fraction form
    3,707.79/5,118.60 = 2,866.59/x
  3. Step 3: Cross multiply
    3,707.79x = 5,118.60 × 2,866.59
  4. Step 4: Simplify right side
    3,707.79x = 14,672,927.57
  5. Step 5: Solve for x
    x = 14,672,927.57/3,707.79
  6. Step 6: Final answer
    x = 3,957.32

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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.