Home / 1,151.64-1,590.30-1,047.96

Finding the Fourth Proportional to 1,151.64, 1,590.30 and 1,047.96

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Solution

The fourth proportional to 1,151.64, 1,590.30 and 1,047.96 is: 1,447.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151.64 : 1,590.30 = 1,047.96 : x
  2. Step 2: Convert to fraction form
    1,151.64/1,590.30 = 1,047.96/x
  3. Step 3: Cross multiply
    1,151.64x = 1,590.30 × 1,047.96
  4. Step 4: Simplify right side
    1,151.64x = 1,666,570.79
  5. Step 5: Solve for x
    x = 1,666,570.79/1,151.64
  6. Step 6: Final answer
    x = 1,447.13

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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.