Home / 6,899.95-10,351.65-2,220.40

Finding the Fourth Proportional to 6,899.95, 10,351.65 and 2,220.40

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Solution

The fourth proportional to 6,899.95, 10,351.65 and 2,220.40 is: 3,331.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,899.95 : 10,351.65 = 2,220.40 : x
  2. Step 2: Convert to fraction form
    6,899.95/10,351.65 = 2,220.40/x
  3. Step 3: Cross multiply
    6,899.95x = 10,351.65 × 2,220.40
  4. Step 4: Simplify right side
    6,899.95x = 22,984,803.66
  5. Step 5: Solve for x
    x = 22,984,803.66/6,899.95
  6. Step 6: Final answer
    x = 3,331.16

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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.