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Finding the Fourth Proportional to 3,430.10, 4,815.10 and 3,430.10

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Solution

The fourth proportional to 3,430.10, 4,815.10 and 3,430.10 is: 4,815.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,430.10 : 4,815.10 = 3,430.10 : x
  2. Step 2: Convert to fraction form
    3,430.10/4,815.10 = 3,430.10/x
  3. Step 3: Cross multiply
    3,430.10x = 4,815.10 × 3,430.10
  4. Step 4: Simplify right side
    3,430.10x = 16,516,274.51
  5. Step 5: Solve for x
    x = 16,516,274.51/3,430.10
  6. Step 6: Final answer
    x = 4,815.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.