Home / 4,200.24-6,301.98-1,980.30

Finding the Fourth Proportional to 4,200.24, 6,301.98 and 1,980.30

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Solution

The fourth proportional to 4,200.24, 6,301.98 and 1,980.30 is: 2,971.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,200.24 : 6,301.98 = 1,980.30 : x
  2. Step 2: Convert to fraction form
    4,200.24/6,301.98 = 1,980.30/x
  3. Step 3: Cross multiply
    4,200.24x = 6,301.98 × 1,980.30
  4. Step 4: Simplify right side
    4,200.24x = 12,479,810.99
  5. Step 5: Solve for x
    x = 12,479,810.99/4,200.24
  6. Step 6: Final answer
    x = 2,971.21

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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.