Home / 5,315.12-7,335.28-2,958

Finding the Fourth Proportional to 5,315.12, 7,335.28 and 2,958

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Solution

The fourth proportional to 5,315.12, 7,335.28 and 2,958 is: 4,082.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,315.12 : 7,335.28 = 2,958 : x
  2. Step 2: Convert to fraction form
    5,315.12/7,335.28 = 2,958/x
  3. Step 3: Cross multiply
    5,315.12x = 7,335.28 × 2,958
  4. Step 4: Simplify right side
    5,315.12x = 21,697,758.24
  5. Step 5: Solve for x
    x = 21,697,758.24/5,315.12
  6. Step 6: Final answer
    x = 4,082.27

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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.