Home / 2,130.65-3,190.64-1,348.30

Finding the Fourth Proportional to 2,130.65, 3,190.64 and 1,348.30

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Solution

The fourth proportional to 2,130.65, 3,190.64 and 1,348.30 is: 2,019.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.65 : 3,190.64 = 1,348.30 : x
  2. Step 2: Convert to fraction form
    2,130.65/3,190.64 = 1,348.30/x
  3. Step 3: Cross multiply
    2,130.65x = 3,190.64 × 1,348.30
  4. Step 4: Simplify right side
    2,130.65x = 4,301,926.80
  5. Step 5: Solve for x
    x = 4,301,926.80/2,130.65
  6. Step 6: Final answer
    x = 2,019.06

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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.