Home / 6,140.08-9,211.92-1,980.01

Finding the Fourth Proportional to 6,140.08, 9,211.92 and 1,980.01

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Solution

The fourth proportional to 6,140.08, 9,211.92 and 1,980.01 is: 2,970.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,140.08 : 9,211.92 = 1,980.01 : x
  2. Step 2: Convert to fraction form
    6,140.08/9,211.92 = 1,980.01/x
  3. Step 3: Cross multiply
    6,140.08x = 9,211.92 × 1,980.01
  4. Step 4: Simplify right side
    6,140.08x = 18,239,647.66
  5. Step 5: Solve for x
    x = 18,239,647.66/6,140.08
  6. Step 6: Final answer
    x = 2,970.59

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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.