Home / 2,929.13-4,393.18-981.33

Finding the Fourth Proportional to 2,929.13, 4,393.18 and 981.33

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Solution

The fourth proportional to 2,929.13, 4,393.18 and 981.33 is: 1,471.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.13 : 4,393.18 = 981.33 : x
  2. Step 2: Convert to fraction form
    2,929.13/4,393.18 = 981.33/x
  3. Step 3: Cross multiply
    2,929.13x = 4,393.18 × 981.33
  4. Step 4: Simplify right side
    2,929.13x = 4,311,159.33
  5. Step 5: Solve for x
    x = 4,311,159.33/2,929.13
  6. Step 6: Final answer
    x = 1,471.82

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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.