Home / 3,479.18-4,802.91-2,153.75

Finding the Fourth Proportional to 3,479.18, 4,802.91 and 2,153.75

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Solution

The fourth proportional to 3,479.18, 4,802.91 and 2,153.75 is: 2,973.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,479.18 : 4,802.91 = 2,153.75 : x
  2. Step 2: Convert to fraction form
    3,479.18/4,802.91 = 2,153.75/x
  3. Step 3: Cross multiply
    3,479.18x = 4,802.91 × 2,153.75
  4. Step 4: Simplify right side
    3,479.18x = 10,344,267.41
  5. Step 5: Solve for x
    x = 10,344,267.41/3,479.18
  6. Step 6: Final answer
    x = 2,973.19

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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.