Home / 2,453.35-3,678.40-1,155.19

Finding the Fourth Proportional to 2,453.35, 3,678.40 and 1,155.19

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Solution

The fourth proportional to 2,453.35, 3,678.40 and 1,155.19 is: 1,732.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,453.35 : 3,678.40 = 1,155.19 : x
  2. Step 2: Convert to fraction form
    2,453.35/3,678.40 = 1,155.19/x
  3. Step 3: Cross multiply
    2,453.35x = 3,678.40 × 1,155.19
  4. Step 4: Simplify right side
    2,453.35x = 4,249,250.90
  5. Step 5: Solve for x
    x = 4,249,250.90/2,453.35
  6. Step 6: Final answer
    x = 1,732.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.