Home / 1,345.96-2,010.05-1,086.28

Finding the Fourth Proportional to 1,345.96, 2,010.05 and 1,086.28

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Solution

The fourth proportional to 1,345.96, 2,010.05 and 1,086.28 is: 1,622.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,345.96 : 2,010.05 = 1,086.28 : x
  2. Step 2: Convert to fraction form
    1,345.96/2,010.05 = 1,086.28/x
  3. Step 3: Cross multiply
    1,345.96x = 2,010.05 × 1,086.28
  4. Step 4: Simplify right side
    1,345.96x = 2,183,477.11
  5. Step 5: Solve for x
    x = 2,183,477.11/1,345.96
  6. Step 6: Final answer
    x = 1,622.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.