Home / 1,544.15-2,130.77-880.88

Finding the Fourth Proportional to 1,544.15, 2,130.77 and 880.88

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Solution

The fourth proportional to 1,544.15, 2,130.77 and 880.88 is: 1,215.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.15 : 2,130.77 = 880.88 : x
  2. Step 2: Convert to fraction form
    1,544.15/2,130.77 = 880.88/x
  3. Step 3: Cross multiply
    1,544.15x = 2,130.77 × 880.88
  4. Step 4: Simplify right side
    1,544.15x = 1,876,940.51
  5. Step 5: Solve for x
    x = 1,876,940.51/1,544.15
  6. Step 6: Final answer
    x = 1,215.52

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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.