Home / 3,459.21-4,772.34-2,130.62

Finding the Fourth Proportional to 3,459.21, 4,772.34 and 2,130.62

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Solution

The fourth proportional to 3,459.21, 4,772.34 and 2,130.62 is: 2,939.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,459.21 : 4,772.34 = 2,130.62 : x
  2. Step 2: Convert to fraction form
    3,459.21/4,772.34 = 2,130.62/x
  3. Step 3: Cross multiply
    3,459.21x = 4,772.34 × 2,130.62
  4. Step 4: Simplify right side
    3,459.21x = 10,168,019.19
  5. Step 5: Solve for x
    x = 10,168,019.19/3,459.21
  6. Step 6: Final answer
    x = 2,939.41

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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.