Home / 4,828.20-7,242.30-2,981.40

Finding the Fourth Proportional to 4,828.20, 7,242.30 and 2,981.40

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Solution

The fourth proportional to 4,828.20, 7,242.30 and 2,981.40 is: 4,472.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,828.20 : 7,242.30 = 2,981.40 : x
  2. Step 2: Convert to fraction form
    4,828.20/7,242.30 = 2,981.40/x
  3. Step 3: Cross multiply
    4,828.20x = 7,242.30 × 2,981.40
  4. Step 4: Simplify right side
    4,828.20x = 21,592,193.22
  5. Step 5: Solve for x
    x = 21,592,193.22/4,828.20
  6. Step 6: Final answer
    x = 4,472.10

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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.