Home / 1,544.36-2,130.68-914.91

Finding the Fourth Proportional to 1,544.36, 2,130.68 and 914.91

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Solution

The fourth proportional to 1,544.36, 2,130.68 and 914.91 is: 1,262.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.36 : 2,130.68 = 914.91 : x
  2. Step 2: Convert to fraction form
    1,544.36/2,130.68 = 914.91/x
  3. Step 3: Cross multiply
    1,544.36x = 2,130.68 × 914.91
  4. Step 4: Simplify right side
    1,544.36x = 1,949,375.86
  5. Step 5: Solve for x
    x = 1,949,375.86/1,544.36
  6. Step 6: Final answer
    x = 1,262.26

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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.