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Finding the Fourth Proportional to 3,547.47, 5,313.09 and 1,699.89

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Solution

The fourth proportional to 3,547.47, 5,313.09 and 1,699.89 is: 2,545.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,547.47 : 5,313.09 = 1,699.89 : x
  2. Step 2: Convert to fraction form
    3,547.47/5,313.09 = 1,699.89/x
  3. Step 3: Cross multiply
    3,547.47x = 5,313.09 × 1,699.89
  4. Step 4: Simplify right side
    3,547.47x = 9,031,668.56
  5. Step 5: Solve for x
    x = 9,031,668.56/3,547.47
  6. Step 6: Final answer
    x = 2,545.95

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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.