Home / 4,715.10-6,505.20-2,920.68

Finding the Fourth Proportional to 4,715.10, 6,505.20 and 2,920.68

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Solution

The fourth proportional to 4,715.10, 6,505.20 and 2,920.68 is: 4,029.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,715.10 : 6,505.20 = 2,920.68 : x
  2. Step 2: Convert to fraction form
    4,715.10/6,505.20 = 2,920.68/x
  3. Step 3: Cross multiply
    4,715.10x = 6,505.20 × 2,920.68
  4. Step 4: Simplify right side
    4,715.10x = 18,999,607.54
  5. Step 5: Solve for x
    x = 18,999,607.54/4,715.10
  6. Step 6: Final answer
    x = 4,029.52

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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.