Home / 2,066.90-2,852.32-1,135.40

Finding the Fourth Proportional to 2,066.90, 2,852.32 and 1,135.40

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Solution

The fourth proportional to 2,066.90, 2,852.32 and 1,135.40 is: 1,566.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,066.90 : 2,852.32 = 1,135.40 : x
  2. Step 2: Convert to fraction form
    2,066.90/2,852.32 = 1,135.40/x
  3. Step 3: Cross multiply
    2,066.90x = 2,852.32 × 1,135.40
  4. Step 4: Simplify right side
    2,066.90x = 3,238,524.13
  5. Step 5: Solve for x
    x = 3,238,524.13/2,066.90
  6. Step 6: Final answer
    x = 1,566.85

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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.