Home / 3,498.61-4,828.15-1,905.31

Finding the Fourth Proportional to 3,498.61, 4,828.15 and 1,905.31

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Solution

The fourth proportional to 3,498.61, 4,828.15 and 1,905.31 is: 2,629.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,498.61 : 4,828.15 = 1,905.31 : x
  2. Step 2: Convert to fraction form
    3,498.61/4,828.15 = 1,905.31/x
  3. Step 3: Cross multiply
    3,498.61x = 4,828.15 × 1,905.31
  4. Step 4: Simplify right side
    3,498.61x = 9,199,088.81
  5. Step 5: Solve for x
    x = 9,199,088.81/3,498.61
  6. Step 6: Final answer
    x = 2,629.36

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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.