Home / 1,565.11-2,336.45-1,455.76

Finding the Fourth Proportional to 1,565.11, 2,336.45 and 1,455.76

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Solution

The fourth proportional to 1,565.11, 2,336.45 and 1,455.76 is: 2,173.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,565.11 : 2,336.45 = 1,455.76 : x
  2. Step 2: Convert to fraction form
    1,565.11/2,336.45 = 1,455.76/x
  3. Step 3: Cross multiply
    1,565.11x = 2,336.45 × 1,455.76
  4. Step 4: Simplify right side
    1,565.11x = 3,401,310.45
  5. Step 5: Solve for x
    x = 3,401,310.45/1,565.11
  6. Step 6: Final answer
    x = 2,173.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.