Home / 8,380.02-12,570.01-2,140.03

Finding the Fourth Proportional to 8,380.02, 12,570.01 and 2,140.03

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Solution

The fourth proportional to 8,380.02, 12,570.01 and 2,140.03 is: 3,210.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,380.02 : 12,570.01 = 2,140.03 : x
  2. Step 2: Convert to fraction form
    8,380.02/12,570.01 = 2,140.03/x
  3. Step 3: Cross multiply
    8,380.02x = 12,570.01 × 2,140.03
  4. Step 4: Simplify right side
    8,380.02x = 26,900,220.90
  5. Step 5: Solve for x
    x = 26,900,220.90/8,380.02
  6. Step 6: Final answer
    x = 3,210.04

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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.