Home / 7,712.29-10,642.99-4,175.50

Finding the Fourth Proportional to 7,712.29, 10,642.99 and 4,175.50

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Solution

The fourth proportional to 7,712.29, 10,642.99 and 4,175.50 is: 5,762.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,712.29 : 10,642.99 = 4,175.50 : x
  2. Step 2: Convert to fraction form
    7,712.29/10,642.99 = 4,175.50/x
  3. Step 3: Cross multiply
    7,712.29x = 10,642.99 × 4,175.50
  4. Step 4: Simplify right side
    7,712.29x = 44,439,804.75
  5. Step 5: Solve for x
    x = 44,439,804.75/7,712.29
  6. Step 6: Final answer
    x = 5,762.21

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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.