Home / 3,132.36-4,700.40-1,186.20

Finding the Fourth Proportional to 3,132.36, 4,700.40 and 1,186.20

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Solution

The fourth proportional to 3,132.36, 4,700.40 and 1,186.20 is: 1,780.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132.36 : 4,700.40 = 1,186.20 : x
  2. Step 2: Convert to fraction form
    3,132.36/4,700.40 = 1,186.20/x
  3. Step 3: Cross multiply
    3,132.36x = 4,700.40 × 1,186.20
  4. Step 4: Simplify right side
    3,132.36x = 5,575,614.48
  5. Step 5: Solve for x
    x = 5,575,614.48/3,132.36
  6. Step 6: Final answer
    x = 1,780.00

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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.