Home / 3,307.60-4,560.40-2,778.56

Finding the Fourth Proportional to 3,307.60, 4,560.40 and 2,778.56

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Solution

The fourth proportional to 3,307.60, 4,560.40 and 2,778.56 is: 3,830.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,307.60 : 4,560.40 = 2,778.56 : x
  2. Step 2: Convert to fraction form
    3,307.60/4,560.40 = 2,778.56/x
  3. Step 3: Cross multiply
    3,307.60x = 4,560.40 × 2,778.56
  4. Step 4: Simplify right side
    3,307.60x = 12,671,345.02
  5. Step 5: Solve for x
    x = 12,671,345.02/3,307.60
  6. Step 6: Final answer
    x = 3,830.98

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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.