Home / 5,428.33-8,142.47-2,307.85

Finding the Fourth Proportional to 5,428.33, 8,142.47 and 2,307.85

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Solution

The fourth proportional to 5,428.33, 8,142.47 and 2,307.85 is: 3,461.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,428.33 : 8,142.47 = 2,307.85 : x
  2. Step 2: Convert to fraction form
    5,428.33/8,142.47 = 2,307.85/x
  3. Step 3: Cross multiply
    5,428.33x = 8,142.47 × 2,307.85
  4. Step 4: Simplify right side
    5,428.33x = 18,791,547.14
  5. Step 5: Solve for x
    x = 18,791,547.14/5,428.33
  6. Step 6: Final answer
    x = 3,461.76

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1.5x scale

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.