Home / 1,054.26-1,581.70-469.40

Finding the Fourth Proportional to 1,054.26, 1,581.70 and 469.40

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Solution

The fourth proportional to 1,054.26, 1,581.70 and 469.40 is: 704.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,054.26 : 1,581.70 = 469.40 : x
  2. Step 2: Convert to fraction form
    1,054.26/1,581.70 = 469.40/x
  3. Step 3: Cross multiply
    1,054.26x = 1,581.70 × 469.40
  4. Step 4: Simplify right side
    1,054.26x = 742,449.98
  5. Step 5: Solve for x
    x = 742,449.98/1,054.26
  6. Step 6: Final answer
    x = 704.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.