Home / 1,631.86-2,434.58-1,398.04

Finding the Fourth Proportional to 1,631.86, 2,434.58 and 1,398.04

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Solution

The fourth proportional to 1,631.86, 2,434.58 and 1,398.04 is: 2,085.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.86 : 2,434.58 = 1,398.04 : x
  2. Step 2: Convert to fraction form
    1,631.86/2,434.58 = 1,398.04/x
  3. Step 3: Cross multiply
    1,631.86x = 2,434.58 × 1,398.04
  4. Step 4: Simplify right side
    1,631.86x = 3,403,640.22
  5. Step 5: Solve for x
    x = 3,403,640.22/1,631.86
  6. Step 6: Final answer
    x = 2,085.74

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.