Home / 7,320.60-10,972.80-4,202.10

Finding the Fourth Proportional to 7,320.60, 10,972.80 and 4,202.10

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Solution

The fourth proportional to 7,320.60, 10,972.80 and 4,202.10 is: 6,298.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,320.60 : 10,972.80 = 4,202.10 : x
  2. Step 2: Convert to fraction form
    7,320.60/10,972.80 = 4,202.10/x
  3. Step 3: Cross multiply
    7,320.60x = 10,972.80 × 4,202.10
  4. Step 4: Simplify right side
    7,320.60x = 46,108,802.88
  5. Step 5: Solve for x
    x = 46,108,802.88/7,320.60
  6. Step 6: Final answer
    x = 6,298.50

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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.