Home / 2,316.42-3,195.21-1,686.18

Finding the Fourth Proportional to 2,316.42, 3,195.21 and 1,686.18

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Solution

The fourth proportional to 2,316.42, 3,195.21 and 1,686.18 is: 2,325.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,316.42 : 3,195.21 = 1,686.18 : x
  2. Step 2: Convert to fraction form
    2,316.42/3,195.21 = 1,686.18/x
  3. Step 3: Cross multiply
    2,316.42x = 3,195.21 × 1,686.18
  4. Step 4: Simplify right side
    2,316.42x = 5,387,699.20
  5. Step 5: Solve for x
    x = 5,387,699.20/2,316.42
  6. Step 6: Final answer
    x = 2,325.87

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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.