Home / 3,565.28-4,920.13-1,993.40

Finding the Fourth Proportional to 3,565.28, 4,920.13 and 1,993.40

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Solution

The fourth proportional to 3,565.28, 4,920.13 and 1,993.40 is: 2,750.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,565.28 : 4,920.13 = 1,993.40 : x
  2. Step 2: Convert to fraction form
    3,565.28/4,920.13 = 1,993.40/x
  3. Step 3: Cross multiply
    3,565.28x = 4,920.13 × 1,993.40
  4. Step 4: Simplify right side
    3,565.28x = 9,807,787.14
  5. Step 5: Solve for x
    x = 9,807,787.14/3,565.28
  6. Step 6: Final answer
    x = 2,750.92

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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.