Home / 3,281.36-4,518.60-2,931.92

Finding the Fourth Proportional to 3,281.36, 4,518.60 and 2,931.92

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Solution

The fourth proportional to 3,281.36, 4,518.60 and 2,931.92 is: 4,037.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,281.36 : 4,518.60 = 2,931.92 : x
  2. Step 2: Convert to fraction form
    3,281.36/4,518.60 = 2,931.92/x
  3. Step 3: Cross multiply
    3,281.36x = 4,518.60 × 2,931.92
  4. Step 4: Simplify right side
    3,281.36x = 13,248,173.71
  5. Step 5: Solve for x
    x = 13,248,173.71/3,281.36
  6. Step 6: Final answer
    x = 4,037.40

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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.