Home / 7,187.02-10,780.23-1,992.76

Finding the Fourth Proportional to 7,187.02, 10,780.23 and 1,992.76

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Solution

The fourth proportional to 7,187.02, 10,780.23 and 1,992.76 is: 2,989.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,187.02 : 10,780.23 = 1,992.76 : x
  2. Step 2: Convert to fraction form
    7,187.02/10,780.23 = 1,992.76/x
  3. Step 3: Cross multiply
    7,187.02x = 10,780.23 × 1,992.76
  4. Step 4: Simplify right side
    7,187.02x = 21,482,411.13
  5. Step 5: Solve for x
    x = 21,482,411.13/7,187.02
  6. Step 6: Final answer
    x = 2,989.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.