Home / 3,590.90-4,955.16-2,018.70

Finding the Fourth Proportional to 3,590.90, 4,955.16 and 2,018.70

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Solution

The fourth proportional to 3,590.90, 4,955.16 and 2,018.70 is: 2,785.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,590.90 : 4,955.16 = 2,018.70 : x
  2. Step 2: Convert to fraction form
    3,590.90/4,955.16 = 2,018.70/x
  3. Step 3: Cross multiply
    3,590.90x = 4,955.16 × 2,018.70
  4. Step 4: Simplify right side
    3,590.90x = 10,002,981.49
  5. Step 5: Solve for x
    x = 10,002,981.49/3,590.90
  6. Step 6: Final answer
    x = 2,785.65

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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.