Home / 2,911.39-4,017.61-1,585.07

Finding the Fourth Proportional to 2,911.39, 4,017.61 and 1,585.07

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Solution

The fourth proportional to 2,911.39, 4,017.61 and 1,585.07 is: 2,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,911.39 : 4,017.61 = 1,585.07 : x
  2. Step 2: Convert to fraction form
    2,911.39/4,017.61 = 1,585.07/x
  3. Step 3: Cross multiply
    2,911.39x = 4,017.61 × 1,585.07
  4. Step 4: Simplify right side
    2,911.39x = 6,368,165.07
  5. Step 5: Solve for x
    x = 6,368,165.07/2,911.39
  6. Step 6: Final answer
    x = 2,187.33

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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.