Home / 3,934.92-5,424.80-2,870.58

Finding the Fourth Proportional to 3,934.92, 5,424.80 and 2,870.58

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Solution

The fourth proportional to 3,934.92, 5,424.80 and 2,870.58 is: 3,957.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,934.92 : 5,424.80 = 2,870.58 : x
  2. Step 2: Convert to fraction form
    3,934.92/5,424.80 = 2,870.58/x
  3. Step 3: Cross multiply
    3,934.92x = 5,424.80 × 2,870.58
  4. Step 4: Simplify right side
    3,934.92x = 15,572,308.03
  5. Step 5: Solve for x
    x = 15,572,308.03/3,934.92
  6. Step 6: Final answer
    x = 3,957.46

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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.