Home / 2,131.64-2,944.28-1,541.24

Finding the Fourth Proportional to 2,131.64, 2,944.28 and 1,541.24

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Solution

The fourth proportional to 2,131.64, 2,944.28 and 1,541.24 is: 2,128.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,131.64 : 2,944.28 = 1,541.24 : x
  2. Step 2: Convert to fraction form
    2,131.64/2,944.28 = 1,541.24/x
  3. Step 3: Cross multiply
    2,131.64x = 2,944.28 × 1,541.24
  4. Step 4: Simplify right side
    2,131.64x = 4,537,842.11
  5. Step 5: Solve for x
    x = 4,537,842.11/2,131.64
  6. Step 6: Final answer
    x = 2,128.80

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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.