Home / 4,909.19-6,774.63-2,919.70

Finding the Fourth Proportional to 4,909.19, 6,774.63 and 2,919.70

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Solution

The fourth proportional to 4,909.19, 6,774.63 and 2,919.70 is: 4,029.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,909.19 : 6,774.63 = 2,919.70 : x
  2. Step 2: Convert to fraction form
    4,909.19/6,774.63 = 2,919.70/x
  3. Step 3: Cross multiply
    4,909.19x = 6,774.63 × 2,919.70
  4. Step 4: Simplify right side
    4,909.19x = 19,779,872.61
  5. Step 5: Solve for x
    x = 19,779,872.61/4,909.19
  6. Step 6: Final answer
    x = 4,029.15

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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.