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Finding the Fourth Proportional to 3,438.51, 4,746.50 and 3,387.93

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Solution

The fourth proportional to 3,438.51, 4,746.50 and 3,387.93 is: 4,676.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,438.51 : 4,746.50 = 3,387.93 : x
  2. Step 2: Convert to fraction form
    3,438.51/4,746.50 = 3,387.93/x
  3. Step 3: Cross multiply
    3,438.51x = 4,746.50 × 3,387.93
  4. Step 4: Simplify right side
    3,438.51x = 16,080,792.81
  5. Step 5: Solve for x
    x = 16,080,792.81/3,438.51
  6. Step 6: Final answer
    x = 4,676.67

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1.5x scale

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.