Home / 3,098.40-4,643.68-1,798.35

Finding the Fourth Proportional to 3,098.40, 4,643.68 and 1,798.35

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Solution

The fourth proportional to 3,098.40, 4,643.68 and 1,798.35 is: 2,695.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,098.40 : 4,643.68 = 1,798.35 : x
  2. Step 2: Convert to fraction form
    3,098.40/4,643.68 = 1,798.35/x
  3. Step 3: Cross multiply
    3,098.40x = 4,643.68 × 1,798.35
  4. Step 4: Simplify right side
    3,098.40x = 8,350,961.93
  5. Step 5: Solve for x
    x = 8,350,961.93/3,098.40
  6. Step 6: Final answer
    x = 2,695.25

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Double scale
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1.5x scale

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.