Home / 4,909.60-6,774.24-2,814.40

Finding the Fourth Proportional to 4,909.60, 6,774.24 and 2,814.40

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Solution

The fourth proportional to 4,909.60, 6,774.24 and 2,814.40 is: 3,883.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.60 : 6,774.24 = 2,814.40 : x
  2. Step 2: Convert to fraction form
    4,909.60/6,774.24 = 2,814.40/x
  3. Step 3: Cross multiply
    4,909.60x = 6,774.24 × 2,814.40
  4. Step 4: Simplify right side
    4,909.60x = 19,065,421.06
  5. Step 5: Solve for x
    x = 19,065,421.06/4,909.60
  6. Step 6: Final answer
    x = 3,883.29

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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.