Home / 4,909.79-6,775.53-2,671.67

Finding the Fourth Proportional to 4,909.79, 6,775.53 and 2,671.67

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Solution

The fourth proportional to 4,909.79, 6,775.53 and 2,671.67 is: 3,686.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.79 : 6,775.53 = 2,671.67 : x
  2. Step 2: Convert to fraction form
    4,909.79/6,775.53 = 2,671.67/x
  3. Step 3: Cross multiply
    4,909.79x = 6,775.53 × 2,671.67
  4. Step 4: Simplify right side
    4,909.79x = 18,101,980.24
  5. Step 5: Solve for x
    x = 18,101,980.24/4,909.79
  6. Step 6: Final answer
    x = 3,686.91

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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.