Home / 3,124.40-4,312.10-1,798.07

Finding the Fourth Proportional to 3,124.40, 4,312.10 and 1,798.07

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Solution

The fourth proportional to 3,124.40, 4,312.10 and 1,798.07 is: 2,481.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,124.40 : 4,312.10 = 1,798.07 : x
  2. Step 2: Convert to fraction form
    3,124.40/4,312.10 = 1,798.07/x
  3. Step 3: Cross multiply
    3,124.40x = 4,312.10 × 1,798.07
  4. Step 4: Simplify right side
    3,124.40x = 7,753,440.58
  5. Step 5: Solve for x
    x = 7,753,440.58/3,124.40
  6. Step 6: Final answer
    x = 2,481.58

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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.