Home / 3,680.70-5,521.35-1,048.20

Finding the Fourth Proportional to 3,680.70, 5,521.35 and 1,048.20

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Solution

The fourth proportional to 3,680.70, 5,521.35 and 1,048.20 is: 1,572.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,680.70 : 5,521.35 = 1,048.20 : x
  2. Step 2: Convert to fraction form
    3,680.70/5,521.35 = 1,048.20/x
  3. Step 3: Cross multiply
    3,680.70x = 5,521.35 × 1,048.20
  4. Step 4: Simplify right side
    3,680.70x = 5,787,479.07
  5. Step 5: Solve for x
    x = 5,787,479.07/3,680.70
  6. Step 6: Final answer
    x = 1,572.39

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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.