Home / 5,355.06-7,390.02-3,118.24

Finding the Fourth Proportional to 5,355.06, 7,390.02 and 3,118.24

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Solution

The fourth proportional to 5,355.06, 7,390.02 and 3,118.24 is: 4,303.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,355.06 : 7,390.02 = 3,118.24 : x
  2. Step 2: Convert to fraction form
    5,355.06/7,390.02 = 3,118.24/x
  3. Step 3: Cross multiply
    5,355.06x = 7,390.02 × 3,118.24
  4. Step 4: Simplify right side
    5,355.06x = 23,043,855.96
  5. Step 5: Solve for x
    x = 23,043,855.96/5,355.06
  6. Step 6: Final answer
    x = 4,303.19

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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.