Home / 3,390.46-4,678.59-2,064.59

Finding the Fourth Proportional to 3,390.46, 4,678.59 and 2,064.59

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Solution

The fourth proportional to 3,390.46, 4,678.59 and 2,064.59 is: 2,848.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,390.46 : 4,678.59 = 2,064.59 : x
  2. Step 2: Convert to fraction form
    3,390.46/4,678.59 = 2,064.59/x
  3. Step 3: Cross multiply
    3,390.46x = 4,678.59 × 2,064.59
  4. Step 4: Simplify right side
    3,390.46x = 9,659,354.60
  5. Step 5: Solve for x
    x = 9,659,354.60/3,390.46
  6. Step 6: Final answer
    x = 2,848.98

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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.