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Finding the Fourth Proportional to 3,347.47, 5,018.10 and 1,155.68

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Solution

The fourth proportional to 3,347.47, 5,018.10 and 1,155.68 is: 1,732.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,347.47 : 5,018.10 = 1,155.68 : x
  2. Step 2: Convert to fraction form
    3,347.47/5,018.10 = 1,155.68/x
  3. Step 3: Cross multiply
    3,347.47x = 5,018.10 × 1,155.68
  4. Step 4: Simplify right side
    3,347.47x = 5,799,317.81
  5. Step 5: Solve for x
    x = 5,799,317.81/3,347.47
  6. Step 6: Final answer
    x = 1,732.45

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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.