Home / 3,386.70-5,073.30-2,980.80

Finding the Fourth Proportional to 3,386.70, 5,073.30 and 2,980.80

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Solution

The fourth proportional to 3,386.70, 5,073.30 and 2,980.80 is: 4,465.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,386.70 : 5,073.30 = 2,980.80 : x
  2. Step 2: Convert to fraction form
    3,386.70/5,073.30 = 2,980.80/x
  3. Step 3: Cross multiply
    3,386.70x = 5,073.30 × 2,980.80
  4. Step 4: Simplify right side
    3,386.70x = 15,122,492.64
  5. Step 5: Solve for x
    x = 15,122,492.64/3,386.70
  6. Step 6: Final answer
    x = 4,465.26

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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.