Home / 1,815.17-2,503.58-1,152.21

Finding the Fourth Proportional to 1,815.17, 2,503.58 and 1,152.21

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Solution

The fourth proportional to 1,815.17, 2,503.58 and 1,152.21 is: 1,589.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.17 : 2,503.58 = 1,152.21 : x
  2. Step 2: Convert to fraction form
    1,815.17/2,503.58 = 1,152.21/x
  3. Step 3: Cross multiply
    1,815.17x = 2,503.58 × 1,152.21
  4. Step 4: Simplify right side
    1,815.17x = 2,884,653.54
  5. Step 5: Solve for x
    x = 2,884,653.54/1,815.17
  6. Step 6: Final answer
    x = 1,589.20

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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.