Home / 2,929.79-4,043.13-1,810.47

Finding the Fourth Proportional to 2,929.79, 4,043.13 and 1,810.47

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Solution

The fourth proportional to 2,929.79, 4,043.13 and 1,810.47 is: 2,498.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,929.79 : 4,043.13 = 1,810.47 : x
  2. Step 2: Convert to fraction form
    2,929.79/4,043.13 = 1,810.47/x
  3. Step 3: Cross multiply
    2,929.79x = 4,043.13 × 1,810.47
  4. Step 4: Simplify right side
    2,929.79x = 7,319,965.57
  5. Step 5: Solve for x
    x = 7,319,965.57/2,929.79
  6. Step 6: Final answer
    x = 2,498.47

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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.