Home / 3,587.07-4,949.91-2,015.40

Finding the Fourth Proportional to 3,587.07, 4,949.91 and 2,015.40

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Solution

The fourth proportional to 3,587.07, 4,949.91 and 2,015.40 is: 2,781.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,587.07 : 4,949.91 = 2,015.40 : x
  2. Step 2: Convert to fraction form
    3,587.07/4,949.91 = 2,015.40/x
  3. Step 3: Cross multiply
    3,587.07x = 4,949.91 × 2,015.40
  4. Step 4: Simplify right side
    3,587.07x = 9,976,048.61
  5. Step 5: Solve for x
    x = 9,976,048.61/3,587.07
  6. Step 6: Final answer
    x = 2,781.11

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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.