Home / 3,405.95-4,697.48-2,815.46

Finding the Fourth Proportional to 3,405.95, 4,697.48 and 2,815.46

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Solution

The fourth proportional to 3,405.95, 4,697.48 and 2,815.46 is: 3,883.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,405.95 : 4,697.48 = 2,815.46 : x
  2. Step 2: Convert to fraction form
    3,405.95/4,697.48 = 2,815.46/x
  3. Step 3: Cross multiply
    3,405.95x = 4,697.48 × 2,815.46
  4. Step 4: Simplify right side
    3,405.95x = 13,225,529.48
  5. Step 5: Solve for x
    x = 13,225,529.48/3,405.95
  6. Step 6: Final answer
    x = 3,883.07

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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.