Home / 2,130.10-3,195.15-959.65

Finding the Fourth Proportional to 2,130.10, 3,195.15 and 959.65

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Solution

The fourth proportional to 2,130.10, 3,195.15 and 959.65 is: 1,439.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.10 : 3,195.15 = 959.65 : x
  2. Step 2: Convert to fraction form
    2,130.10/3,195.15 = 959.65/x
  3. Step 3: Cross multiply
    2,130.10x = 3,195.15 × 959.65
  4. Step 4: Simplify right side
    2,130.10x = 3,066,225.70
  5. Step 5: Solve for x
    x = 3,066,225.70/2,130.10
  6. Step 6: Final answer
    x = 1,439.48

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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.