Home / 3,859.07-5,785.85-1,666.59

Finding the Fourth Proportional to 3,859.07, 5,785.85 and 1,666.59

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Solution

The fourth proportional to 3,859.07, 5,785.85 and 1,666.59 is: 2,498.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,859.07 : 5,785.85 = 1,666.59 : x
  2. Step 2: Convert to fraction form
    3,859.07/5,785.85 = 1,666.59/x
  3. Step 3: Cross multiply
    3,859.07x = 5,785.85 × 1,666.59
  4. Step 4: Simplify right side
    3,859.07x = 9,642,631.42
  5. Step 5: Solve for x
    x = 9,642,631.42/3,859.07
  6. Step 6: Final answer
    x = 2,498.70

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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.