Home / 2,130.46-2,940.01-1,186.23

Finding the Fourth Proportional to 2,130.46, 2,940.01 and 1,186.23

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Solution

The fourth proportional to 2,130.46, 2,940.01 and 1,186.23 is: 1,636.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130.46 : 2,940.01 = 1,186.23 : x
  2. Step 2: Convert to fraction form
    2,130.46/2,940.01 = 1,186.23/x
  3. Step 3: Cross multiply
    2,130.46x = 2,940.01 × 1,186.23
  4. Step 4: Simplify right side
    2,130.46x = 3,487,514.07
  5. Step 5: Solve for x
    x = 3,487,514.07/2,130.46
  6. Step 6: Final answer
    x = 1,636.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.