Home / 1,060.24-1,590.54-402.10

Finding the Fourth Proportional to 1,060.24, 1,590.54 and 402.10

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Solution

The fourth proportional to 1,060.24, 1,590.54 and 402.10 is: 603.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,060.24 : 1,590.54 = 402.10 : x
  2. Step 2: Convert to fraction form
    1,060.24/1,590.54 = 402.10/x
  3. Step 3: Cross multiply
    1,060.24x = 1,590.54 × 402.10
  4. Step 4: Simplify right side
    1,060.24x = 639,556.13
  5. Step 5: Solve for x
    x = 639,556.13/1,060.24
  6. Step 6: Final answer
    x = 603.22

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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.