Home / 2,929.76-4,042.62-1,670.92

Finding the Fourth Proportional to 2,929.76, 4,042.62 and 1,670.92

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Solution

The fourth proportional to 2,929.76, 4,042.62 and 1,670.92 is: 2,305.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.76 : 4,042.62 = 1,670.92 : x
  2. Step 2: Convert to fraction form
    2,929.76/4,042.62 = 1,670.92/x
  3. Step 3: Cross multiply
    2,929.76x = 4,042.62 × 1,670.92
  4. Step 4: Simplify right side
    2,929.76x = 6,754,894.61
  5. Step 5: Solve for x
    x = 6,754,894.61/2,929.76
  6. Step 6: Final answer
    x = 2,305.61

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1.5x scale

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.