Home / 3,118.94-4,678.40-2,470.12

Finding the Fourth Proportional to 3,118.94, 4,678.40 and 2,470.12

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Solution

The fourth proportional to 3,118.94, 4,678.40 and 2,470.12 is: 3,705.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118.94 : 4,678.40 = 2,470.12 : x
  2. Step 2: Convert to fraction form
    3,118.94/4,678.40 = 2,470.12/x
  3. Step 3: Cross multiply
    3,118.94x = 4,678.40 × 2,470.12
  4. Step 4: Simplify right side
    3,118.94x = 11,556,209.41
  5. Step 5: Solve for x
    x = 11,556,209.41/3,118.94
  6. Step 6: Final answer
    x = 3,705.17

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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.