Home / 3,457.08-4,768.74-2,130.30

Finding the Fourth Proportional to 3,457.08, 4,768.74 and 2,130.30

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Solution

The fourth proportional to 3,457.08, 4,768.74 and 2,130.30 is: 2,938.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.08 : 4,768.74 = 2,130.30 : x
  2. Step 2: Convert to fraction form
    3,457.08/4,768.74 = 2,130.30/x
  3. Step 3: Cross multiply
    3,457.08x = 4,768.74 × 2,130.30
  4. Step 4: Simplify right side
    3,457.08x = 10,158,846.82
  5. Step 5: Solve for x
    x = 10,158,846.82/3,457.08
  6. Step 6: Final answer
    x = 2,938.56

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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.