Home / 2,785.34-3,842.66-1,666.32

Finding the Fourth Proportional to 2,785.34, 3,842.66 and 1,666.32

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Solution

The fourth proportional to 2,785.34, 3,842.66 and 1,666.32 is: 2,298.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,785.34 : 3,842.66 = 1,666.32 : x
  2. Step 2: Convert to fraction form
    2,785.34/3,842.66 = 1,666.32/x
  3. Step 3: Cross multiply
    2,785.34x = 3,842.66 × 1,666.32
  4. Step 4: Simplify right side
    2,785.34x = 6,403,101.21
  5. Step 5: Solve for x
    x = 6,403,101.21/2,785.34
  6. Step 6: Final answer
    x = 2,298.86

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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.