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Finding the Fourth Proportional to 1,544.10, 2,130.69 and 880.92

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Solution

The fourth proportional to 1,544.10, 2,130.69 and 880.92 is: 1,215.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,544.10 : 2,130.69 = 880.92 : x
  2. Step 2: Convert to fraction form
    1,544.10/2,130.69 = 880.92/x
  3. Step 3: Cross multiply
    1,544.10x = 2,130.69 × 880.92
  4. Step 4: Simplify right side
    1,544.10x = 1,876,967.43
  5. Step 5: Solve for x
    x = 1,876,967.43/1,544.10
  6. Step 6: Final answer
    x = 1,215.57

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Half scale
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Double scale
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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.