Home / 2,778.77-4,184.60-2,417.92

Finding the Fourth Proportional to 2,778.77, 4,184.60 and 2,417.92

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Solution

The fourth proportional to 2,778.77, 4,184.60 and 2,417.92 is: 3,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,778.77 : 4,184.60 = 2,417.92 : x
  2. Step 2: Convert to fraction form
    2,778.77/4,184.60 = 2,417.92/x
  3. Step 3: Cross multiply
    2,778.77x = 4,184.60 × 2,417.92
  4. Step 4: Simplify right side
    2,778.77x = 10,118,005.48
  5. Step 5: Solve for x
    x = 10,118,005.48/2,778.77
  6. Step 6: Final answer
    x = 3,641.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.