Home / 4,780.63-7,165.77-2,312.05

Finding the Fourth Proportional to 4,780.63, 7,165.77 and 2,312.05

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Solution

The fourth proportional to 4,780.63, 7,165.77 and 2,312.05 is: 3,465.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,780.63 : 7,165.77 = 2,312.05 : x
  2. Step 2: Convert to fraction form
    4,780.63/7,165.77 = 2,312.05/x
  3. Step 3: Cross multiply
    4,780.63x = 7,165.77 × 2,312.05
  4. Step 4: Simplify right side
    4,780.63x = 16,567,618.53
  5. Step 5: Solve for x
    x = 16,567,618.53/4,780.63
  6. Step 6: Final answer
    x = 3,465.57

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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.