Home / 5,271.66-7,904.40-2,153.16

Finding the Fourth Proportional to 5,271.66, 7,904.40 and 2,153.16

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Solution

The fourth proportional to 5,271.66, 7,904.40 and 2,153.16 is: 3,228.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,271.66 : 7,904.40 = 2,153.16 : x
  2. Step 2: Convert to fraction form
    5,271.66/7,904.40 = 2,153.16/x
  3. Step 3: Cross multiply
    5,271.66x = 7,904.40 × 2,153.16
  4. Step 4: Simplify right side
    5,271.66x = 17,019,437.90
  5. Step 5: Solve for x
    x = 17,019,437.90/5,271.66
  6. Step 6: Final answer
    x = 3,228.48

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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.