Home / 4,333.04-6,491.40-2,139.20

Finding the Fourth Proportional to 4,333.04, 6,491.40 and 2,139.20

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Solution

The fourth proportional to 4,333.04, 6,491.40 and 2,139.20 is: 3,204.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,333.04 : 6,491.40 = 2,139.20 : x
  2. Step 2: Convert to fraction form
    4,333.04/6,491.40 = 2,139.20/x
  3. Step 3: Cross multiply
    4,333.04x = 6,491.40 × 2,139.20
  4. Step 4: Simplify right side
    4,333.04x = 13,886,402.88
  5. Step 5: Solve for x
    x = 13,886,402.88/4,333.04
  6. Step 6: Final answer
    x = 3,204.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.