Home / 3,011.95-4,518.69-1,256.64

Finding the Fourth Proportional to 3,011.95, 4,518.69 and 1,256.64

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Solution

The fourth proportional to 3,011.95, 4,518.69 and 1,256.64 is: 1,885.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011.95 : 4,518.69 = 1,256.64 : x
  2. Step 2: Convert to fraction form
    3,011.95/4,518.69 = 1,256.64/x
  3. Step 3: Cross multiply
    3,011.95x = 4,518.69 × 1,256.64
  4. Step 4: Simplify right side
    3,011.95x = 5,678,366.60
  5. Step 5: Solve for x
    x = 5,678,366.60/3,011.95
  6. Step 6: Final answer
    x = 1,885.28

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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.