Home / 5,145.95-7,098.80-3,254.36

Finding the Fourth Proportional to 5,145.95, 7,098.80 and 3,254.36

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Solution

The fourth proportional to 5,145.95, 7,098.80 and 3,254.36 is: 4,489.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,145.95 : 7,098.80 = 3,254.36 : x
  2. Step 2: Convert to fraction form
    5,145.95/7,098.80 = 3,254.36/x
  3. Step 3: Cross multiply
    5,145.95x = 7,098.80 × 3,254.36
  4. Step 4: Simplify right side
    5,145.95x = 23,101,999.00
  5. Step 5: Solve for x
    x = 23,101,999.00/5,145.95
  6. Step 6: Final answer
    x = 4,489.35

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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.