Home / 2,190.12-3,285.66-651.24

Finding the Fourth Proportional to 2,190.12, 3,285.66 and 651.24

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Solution

The fourth proportional to 2,190.12, 3,285.66 and 651.24 is: 977.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190.12 : 3,285.66 = 651.24 : x
  2. Step 2: Convert to fraction form
    2,190.12/3,285.66 = 651.24/x
  3. Step 3: Cross multiply
    2,190.12x = 3,285.66 × 651.24
  4. Step 4: Simplify right side
    2,190.12x = 2,139,753.22
  5. Step 5: Solve for x
    x = 2,139,753.22/2,190.12
  6. Step 6: Final answer
    x = 977.00

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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.