Home / 2,121.64-2,929.80-1,596.76

Finding the Fourth Proportional to 2,121.64, 2,929.80 and 1,596.76

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Solution

The fourth proportional to 2,121.64, 2,929.80 and 1,596.76 is: 2,204.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,121.64 : 2,929.80 = 1,596.76 : x
  2. Step 2: Convert to fraction form
    2,121.64/2,929.80 = 1,596.76/x
  3. Step 3: Cross multiply
    2,121.64x = 2,929.80 × 1,596.76
  4. Step 4: Simplify right side
    2,121.64x = 4,678,187.45
  5. Step 5: Solve for x
    x = 4,678,187.45/2,121.64
  6. Step 6: Final answer
    x = 2,204.99

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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.