Home / 1,815.46-2,505.26-1,152.68

Finding the Fourth Proportional to 1,815.46, 2,505.26 and 1,152.68

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Solution

The fourth proportional to 1,815.46, 2,505.26 and 1,152.68 is: 1,590.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,815.46 : 2,505.26 = 1,152.68 : x
  2. Step 2: Convert to fraction form
    1,815.46/2,505.26 = 1,152.68/x
  3. Step 3: Cross multiply
    1,815.46x = 2,505.26 × 1,152.68
  4. Step 4: Simplify right side
    1,815.46x = 2,887,763.10
  5. Step 5: Solve for x
    x = 2,887,763.10/1,815.46
  6. Step 6: Final answer
    x = 1,590.65

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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.