Home / 5,312.24-7,328.84-3,215.60

Finding the Fourth Proportional to 5,312.24, 7,328.84 and 3,215.60

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Solution

The fourth proportional to 5,312.24, 7,328.84 and 3,215.60 is: 4,436.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,312.24 : 7,328.84 = 3,215.60 : x
  2. Step 2: Convert to fraction form
    5,312.24/7,328.84 = 3,215.60/x
  3. Step 3: Cross multiply
    5,312.24x = 7,328.84 × 3,215.60
  4. Step 4: Simplify right side
    5,312.24x = 23,566,617.90
  5. Step 5: Solve for x
    x = 23,566,617.90/5,312.24
  6. Step 6: Final answer
    x = 4,436.29

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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.