Home / 1,631.32-2,248.53-1,133.09

Finding the Fourth Proportional to 1,631.32, 2,248.53 and 1,133.09

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Solution

The fourth proportional to 1,631.32, 2,248.53 and 1,133.09 is: 1,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,631.32 : 2,248.53 = 1,133.09 : x
  2. Step 2: Convert to fraction form
    1,631.32/2,248.53 = 1,133.09/x
  3. Step 3: Cross multiply
    1,631.32x = 2,248.53 × 1,133.09
  4. Step 4: Simplify right side
    1,631.32x = 2,547,786.86
  5. Step 5: Solve for x
    x = 2,547,786.86/1,631.32
  6. Step 6: Final answer
    x = 1,561.80

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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.