Home / 6,522.40-9,783.60-2,140.30

Finding the Fourth Proportional to 6,522.40, 9,783.60 and 2,140.30

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Solution

The fourth proportional to 6,522.40, 9,783.60 and 2,140.30 is: 3,210.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,522.40 : 9,783.60 = 2,140.30 : x
  2. Step 2: Convert to fraction form
    6,522.40/9,783.60 = 2,140.30/x
  3. Step 3: Cross multiply
    6,522.40x = 9,783.60 × 2,140.30
  4. Step 4: Simplify right side
    6,522.40x = 20,939,839.08
  5. Step 5: Solve for x
    x = 20,939,839.08/6,522.40
  6. Step 6: Final answer
    x = 3,210.45

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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.