Home / 3,014.65-4,152.40-2,128.92

Finding the Fourth Proportional to 3,014.65, 4,152.40 and 2,128.92

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Solution

The fourth proportional to 3,014.65, 4,152.40 and 2,128.92 is: 2,932.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,014.65 : 4,152.40 = 2,128.92 : x
  2. Step 2: Convert to fraction form
    3,014.65/4,152.40 = 2,128.92/x
  3. Step 3: Cross multiply
    3,014.65x = 4,152.40 × 2,128.92
  4. Step 4: Simplify right side
    3,014.65x = 8,840,127.41
  5. Step 5: Solve for x
    x = 8,840,127.41/3,014.65
  6. Step 6: Final answer
    x = 2,932.39

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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.