Home / 2,124.12-3,186.56-737.40

Finding the Fourth Proportional to 2,124.12, 3,186.56 and 737.40

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Solution

The fourth proportional to 2,124.12, 3,186.56 and 737.40 is: 1,106.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,124.12 : 3,186.56 = 737.40 : x
  2. Step 2: Convert to fraction form
    2,124.12/3,186.56 = 737.40/x
  3. Step 3: Cross multiply
    2,124.12x = 3,186.56 × 737.40
  4. Step 4: Simplify right side
    2,124.12x = 2,349,769.34
  5. Step 5: Solve for x
    x = 2,349,769.34/2,124.12
  6. Step 6: Final answer
    x = 1,106.23

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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.