Home / 1,541.85-2,121.58-1,498.78

Finding the Fourth Proportional to 1,541.85, 2,121.58 and 1,498.78

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Solution

The fourth proportional to 1,541.85, 2,121.58 and 1,498.78 is: 2,062.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,541.85 : 2,121.58 = 1,498.78 : x
  2. Step 2: Convert to fraction form
    1,541.85/2,121.58 = 1,498.78/x
  3. Step 3: Cross multiply
    1,541.85x = 2,121.58 × 1,498.78
  4. Step 4: Simplify right side
    1,541.85x = 3,179,781.67
  5. Step 5: Solve for x
    x = 3,179,781.67/1,541.85
  6. Step 6: Final answer
    x = 2,062.32

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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.