Home / 1,775.30-2,450.32-1,145.66

Finding the Fourth Proportional to 1,775.30, 2,450.32 and 1,145.66

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Solution

The fourth proportional to 1,775.30, 2,450.32 and 1,145.66 is: 1,581.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,775.30 : 2,450.32 = 1,145.66 : x
  2. Step 2: Convert to fraction form
    1,775.30/2,450.32 = 1,145.66/x
  3. Step 3: Cross multiply
    1,775.30x = 2,450.32 × 1,145.66
  4. Step 4: Simplify right side
    1,775.30x = 2,807,218.50
  5. Step 5: Solve for x
    x = 2,807,218.50/1,775.30
  6. Step 6: Final answer
    x = 1,581.27

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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.