Home / 3,565.89-4,921.02-1,972.35

Finding the Fourth Proportional to 3,565.89, 4,921.02 and 1,972.35

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Solution

The fourth proportional to 3,565.89, 4,921.02 and 1,972.35 is: 2,721.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.89 : 4,921.02 = 1,972.35 : x
  2. Step 2: Convert to fraction form
    3,565.89/4,921.02 = 1,972.35/x
  3. Step 3: Cross multiply
    3,565.89x = 4,921.02 × 1,972.35
  4. Step 4: Simplify right side
    3,565.89x = 9,705,973.80
  5. Step 5: Solve for x
    x = 9,705,973.80/3,565.89
  6. Step 6: Final answer
    x = 2,721.89

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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.