Home / 4,242.16-6,355.14-2,778.40

Finding the Fourth Proportional to 4,242.16, 6,355.14 and 2,778.40

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Solution

The fourth proportional to 4,242.16, 6,355.14 and 2,778.40 is: 4,162.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,242.16 : 6,355.14 = 2,778.40 : x
  2. Step 2: Convert to fraction form
    4,242.16/6,355.14 = 2,778.40/x
  3. Step 3: Cross multiply
    4,242.16x = 6,355.14 × 2,778.40
  4. Step 4: Simplify right side
    4,242.16x = 17,657,120.98
  5. Step 5: Solve for x
    x = 17,657,120.98/4,242.16
  6. Step 6: Final answer
    x = 4,162.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.