Home / 3,507.15-4,840.21-2,621.41

Finding the Fourth Proportional to 3,507.15, 4,840.21 and 2,621.41

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Solution

The fourth proportional to 3,507.15, 4,840.21 and 2,621.41 is: 3,617.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.15 : 4,840.21 = 2,621.41 : x
  2. Step 2: Convert to fraction form
    3,507.15/4,840.21 = 2,621.41/x
  3. Step 3: Cross multiply
    3,507.15x = 4,840.21 × 2,621.41
  4. Step 4: Simplify right side
    3,507.15x = 12,688,178.55
  5. Step 5: Solve for x
    x = 12,688,178.55/3,507.15
  6. Step 6: Final answer
    x = 3,617.81

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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.