Home / 3,565.61-4,920.60-1,972.34

Finding the Fourth Proportional to 3,565.61, 4,920.60 and 1,972.34

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Solution

The fourth proportional to 3,565.61, 4,920.60 and 1,972.34 is: 2,721.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.61 : 4,920.60 = 1,972.34 : x
  2. Step 2: Convert to fraction form
    3,565.61/4,920.60 = 1,972.34/x
  3. Step 3: Cross multiply
    3,565.61x = 4,920.60 × 1,972.34
  4. Step 4: Simplify right side
    3,565.61x = 9,705,096.20
  5. Step 5: Solve for x
    x = 9,705,096.20/3,565.61
  6. Step 6: Final answer
    x = 2,721.86

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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.