Home / 2,386.42-3,292.35-1,391.32

Finding the Fourth Proportional to 2,386.42, 3,292.35 and 1,391.32

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Solution

The fourth proportional to 2,386.42, 3,292.35 and 1,391.32 is: 1,919.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,386.42 : 3,292.35 = 1,391.32 : x
  2. Step 2: Convert to fraction form
    2,386.42/3,292.35 = 1,391.32/x
  3. Step 3: Cross multiply
    2,386.42x = 3,292.35 × 1,391.32
  4. Step 4: Simplify right side
    2,386.42x = 4,580,712.40
  5. Step 5: Solve for x
    x = 4,580,712.40/2,386.42
  6. Step 6: Final answer
    x = 1,919.49

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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.