Home / 2,783.03-4,158.18-2,686.12

Finding the Fourth Proportional to 2,783.03, 4,158.18 and 2,686.12

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Solution

The fourth proportional to 2,783.03, 4,158.18 and 2,686.12 is: 4,013.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,783.03 : 4,158.18 = 2,686.12 : x
  2. Step 2: Convert to fraction form
    2,783.03/4,158.18 = 2,686.12/x
  3. Step 3: Cross multiply
    2,783.03x = 4,158.18 × 2,686.12
  4. Step 4: Simplify right side
    2,783.03x = 11,169,360.07
  5. Step 5: Solve for x
    x = 11,169,360.07/2,783.03
  6. Step 6: Final answer
    x = 4,013.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.