Home / 2,386.43-3,293.45-1,442.45

Finding the Fourth Proportional to 2,386.43, 3,293.45 and 1,442.45

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Solution

The fourth proportional to 2,386.43, 3,293.45 and 1,442.45 is: 1,990.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.43 : 3,293.45 = 1,442.45 : x
  2. Step 2: Convert to fraction form
    2,386.43/3,293.45 = 1,442.45/x
  3. Step 3: Cross multiply
    2,386.43x = 3,293.45 × 1,442.45
  4. Step 4: Simplify right side
    2,386.43x = 4,750,613.27
  5. Step 5: Solve for x
    x = 4,750,613.27/2,386.43
  6. Step 6: Final answer
    x = 1,990.68

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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.